Home / 698,780.24-964,350.90-392,952.86

Finding the Fourth Proportional to 698,780.24, 964,350.90 and 392,952.86

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Solution

The fourth proportional to 698,780.24, 964,350.90 and 392,952.86 is: 542,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,780.24 : 964,350.90 = 392,952.86 : x
  2. Step 2: Convert to fraction form
    698,780.24/964,350.90 = 392,952.86/x
  3. Step 3: Cross multiply
    698,780.24x = 964,350.90 × 392,952.86
  4. Step 4: Simplify right side
    698,780.24x = 378,944,444,198.57
  5. Step 5: Solve for x
    x = 378,944,444,198.57/698,780.24
  6. Step 6: Final answer
    x = 542,294.16

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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.