Home / 782,117.38-1,079,321.98-424,421.38

Finding the Fourth Proportional to 782,117.38, 1,079,321.98 and 424,421.38

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Solution

The fourth proportional to 782,117.38, 1,079,321.98 and 424,421.38 is: 585,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,117.38 : 1,079,321.98 = 424,421.38 : x
  2. Step 2: Convert to fraction form
    782,117.38/1,079,321.98 = 424,421.38/x
  3. Step 3: Cross multiply
    782,117.38x = 1,079,321.98 × 424,421.38
  4. Step 4: Simplify right side
    782,117.38x = 458,087,324,215.93
  5. Step 5: Solve for x
    x = 458,087,324,215.93/782,117.38
  6. Step 6: Final answer
    x = 585,701.50

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Double scale
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1.5x scale

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.