Home / 724,456.60-1,086,684.90-656,805.40

Finding the Fourth Proportional to 724,456.60, 1,086,684.90 and 656,805.40

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Solution

The fourth proportional to 724,456.60, 1,086,684.90 and 656,805.40 is: 985,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,456.60 : 1,086,684.90 = 656,805.40 : x
  2. Step 2: Convert to fraction form
    724,456.60/1,086,684.90 = 656,805.40/x
  3. Step 3: Cross multiply
    724,456.60x = 1,086,684.90 × 656,805.40
  4. Step 4: Simplify right side
    724,456.60x = 713,740,510,418.46
  5. Step 5: Solve for x
    x = 713,740,510,418.46/724,456.60
  6. Step 6: Final answer
    x = 985,208.10

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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.