Home / 820,132.20-1,229,663.70-736,151.40

Finding the Fourth Proportional to 820,132.20, 1,229,663.70 and 736,151.40

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Solution

The fourth proportional to 820,132.20, 1,229,663.70 and 736,151.40 is: 1,103,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,132.20 : 1,229,663.70 = 736,151.40 : x
  2. Step 2: Convert to fraction form
    820,132.20/1,229,663.70 = 736,151.40/x
  3. Step 3: Cross multiply
    820,132.20x = 1,229,663.70 × 736,151.40
  4. Step 4: Simplify right side
    820,132.20x = 905,218,654,284.18
  5. Step 5: Solve for x
    x = 905,218,654,284.18/820,132.20
  6. Step 6: Final answer
    x = 1,103,747.24

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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.