Home / 999,565.90-1,377,966.12-712,587.76

Finding the Fourth Proportional to 999,565.90, 1,377,966.12 and 712,587.76

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Solution

The fourth proportional to 999,565.90, 1,377,966.12 and 712,587.76 is: 982,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,565.90 : 1,377,966.12 = 712,587.76 : x
  2. Step 2: Convert to fraction form
    999,565.90/1,377,966.12 = 712,587.76/x
  3. Step 3: Cross multiply
    999,565.90x = 1,377,966.12 × 712,587.76
  4. Step 4: Simplify right side
    999,565.90x = 981,921,790,806.69
  5. Step 5: Solve for x
    x = 981,921,790,806.69/999,565.90
  6. Step 6: Final answer
    x = 982,348.23

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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.