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Finding the Fourth Proportional to 615,061.80, 922,851.90 and 334,780.20

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Solution

The fourth proportional to 615,061.80, 922,851.90 and 334,780.20 is: 502,311.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,061.80 : 922,851.90 = 334,780.20 : x
  2. Step 2: Convert to fraction form
    615,061.80/922,851.90 = 334,780.20/x
  3. Step 3: Cross multiply
    615,061.80x = 922,851.90 × 334,780.20
  4. Step 4: Simplify right side
    615,061.80x = 308,952,543,652.38
  5. Step 5: Solve for x
    x = 308,952,543,652.38/615,061.80
  6. Step 6: Final answer
    x = 502,311.38

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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.