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Finding the Fourth Proportional to 615,073.80, 922,869.90 and 334,792.20

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Solution

The fourth proportional to 615,073.80, 922,869.90 and 334,792.20 is: 502,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,073.80 : 922,869.90 = 334,792.20 : x
  2. Step 2: Convert to fraction form
    615,073.80/922,869.90 = 334,792.20/x
  3. Step 3: Cross multiply
    615,073.80x = 922,869.90 × 334,792.20
  4. Step 4: Simplify right side
    615,073.80x = 308,969,644,134.78
  5. Step 5: Solve for x
    x = 308,969,644,134.78/615,073.80
  6. Step 6: Final answer
    x = 502,329.39

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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.