Home / 931,520.80-1,397,895.60-340,544.80

Finding the Fourth Proportional to 931,520.80, 1,397,895.60 and 340,544.80

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Solution

The fourth proportional to 931,520.80, 1,397,895.60 and 340,544.80 is: 511,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,520.80 : 1,397,895.60 = 340,544.80 : x
  2. Step 2: Convert to fraction form
    931,520.80/1,397,895.60 = 340,544.80/x
  3. Step 3: Cross multiply
    931,520.80x = 1,397,895.60 × 340,544.80
  4. Step 4: Simplify right side
    931,520.80x = 476,046,077,522.88
  5. Step 5: Solve for x
    x = 476,046,077,522.88/931,520.80
  6. Step 6: Final answer
    x = 511,041.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.