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Finding the Fourth Proportional to 674,253.28, 930,332.32 and 429,336.64

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Solution

The fourth proportional to 674,253.28, 930,332.32 and 429,336.64 is: 592,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,253.28 : 930,332.32 = 429,336.64 : x
  2. Step 2: Convert to fraction form
    674,253.28/930,332.32 = 429,336.64/x
  3. Step 3: Cross multiply
    674,253.28x = 930,332.32 × 429,336.64
  4. Step 4: Simplify right side
    674,253.28x = 399,425,752,352.21
  5. Step 5: Solve for x
    x = 399,425,752,352.21/674,253.28
  6. Step 6: Final answer
    x = 592,397.20

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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.