Home / 731,084.94-1,006,654.23-639,930.78

Finding the Fourth Proportional to 731,084.94, 1,006,654.23 and 639,930.78

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Solution

The fourth proportional to 731,084.94, 1,006,654.23 and 639,930.78 is: 881,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,084.94 : 1,006,654.23 = 639,930.78 : x
  2. Step 2: Convert to fraction form
    731,084.94/1,006,654.23 = 639,930.78/x
  3. Step 3: Cross multiply
    731,084.94x = 1,006,654.23 × 639,930.78
  4. Step 4: Simplify right side
    731,084.94x = 644,189,026,594.20
  5. Step 5: Solve for x
    x = 644,189,026,594.20/731,084.94
  6. Step 6: Final answer
    x = 881,141.15

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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.