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Finding the Fourth Proportional to 566,248.40, 781,402.92 and 311,593.04

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Solution

The fourth proportional to 566,248.40, 781,402.92 and 311,593.04 is: 429,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,248.40 : 781,402.92 = 311,593.04 : x
  2. Step 2: Convert to fraction form
    566,248.40/781,402.92 = 311,593.04/x
  3. Step 3: Cross multiply
    566,248.40x = 781,402.92 × 311,593.04
  4. Step 4: Simplify right side
    566,248.40x = 243,479,711,307.68
  5. Step 5: Solve for x
    x = 243,479,711,307.68/566,248.40
  6. Step 6: Final answer
    x = 429,987.46

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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.