Home / 916,729.20-1,377,167.40-636,793.20

Finding the Fourth Proportional to 916,729.20, 1,377,167.40 and 636,793.20

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Solution

The fourth proportional to 916,729.20, 1,377,167.40 and 636,793.20 is: 956,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,729.20 : 1,377,167.40 = 636,793.20 : x
  2. Step 2: Convert to fraction form
    916,729.20/1,377,167.40 = 636,793.20/x
  3. Step 3: Cross multiply
    916,729.20x = 1,377,167.40 × 636,793.20
  4. Step 4: Simplify right side
    916,729.20x = 876,970,835,581.68
  5. Step 5: Solve for x
    x = 876,970,835,581.68/916,729.20
  6. Step 6: Final answer
    x = 956,630.20

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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.