Home / 437,538.40-656,307.60-331,250.20

Finding the Fourth Proportional to 437,538.40, 656,307.60 and 331,250.20

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Solution

The fourth proportional to 437,538.40, 656,307.60 and 331,250.20 is: 496,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,538.40 : 656,307.60 = 331,250.20 : x
  2. Step 2: Convert to fraction form
    437,538.40/656,307.60 = 331,250.20/x
  3. Step 3: Cross multiply
    437,538.40x = 656,307.60 × 331,250.20
  4. Step 4: Simplify right side
    437,538.40x = 217,402,023,761.52
  5. Step 5: Solve for x
    x = 217,402,023,761.52/437,538.40
  6. Step 6: Final answer
    x = 496,875.30

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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.