Home / 818,801.30-1,130,028.90-456,284.18

Finding the Fourth Proportional to 818,801.30, 1,130,028.90 and 456,284.18

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Solution

The fourth proportional to 818,801.30, 1,130,028.90 and 456,284.18 is: 629,718.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,801.30 : 1,130,028.90 = 456,284.18 : x
  2. Step 2: Convert to fraction form
    818,801.30/1,130,028.90 = 456,284.18/x
  3. Step 3: Cross multiply
    818,801.30x = 1,130,028.90 × 456,284.18
  4. Step 4: Simplify right side
    818,801.30x = 515,614,310,012.80
  5. Step 5: Solve for x
    x = 515,614,310,012.80/818,801.30
  6. Step 6: Final answer
    x = 629,718.48

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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.