Home / 1,115,792.40-1,540,188.36-663,078

Finding the Fourth Proportional to 1,115,792.40, 1,540,188.36 and 663,078

Calculator

Solution

The fourth proportional to 1,115,792.40, 1,540,188.36 and 663,078 is: 915,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,792.40 : 1,540,188.36 = 663,078 : x
  2. Step 2: Convert to fraction form
    1,115,792.40/1,540,188.36 = 663,078/x
  3. Step 3: Cross multiply
    1,115,792.40x = 1,540,188.36 × 663,078
  4. Step 4: Simplify right side
    1,115,792.40x = 1,021,265,017,372.08
  5. Step 5: Solve for x
    x = 1,021,265,017,372.08/1,115,792.40
  6. Step 6: Final answer
    x = 915,282.28

Related Problems

Find fourth proportional to 557,896.20, 770,094.18 and 331,539
Half scale
Find fourth proportional to 2,231,584.80, 3,080,376.72 and 1,326,156
Double scale
Find fourth proportional to 1,115,793.40, 1,540,189.74 and 663,079
Similar ratio
Find fourth proportional to 1,673,688.60, 2,310,282.54 and 994,617
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.