Home / 782,279.17-1,079,360.23-442,747.42

Finding the Fourth Proportional to 782,279.17, 1,079,360.23 and 442,747.42

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Solution

The fourth proportional to 782,279.17, 1,079,360.23 and 442,747.42 is: 610,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,279.17 : 1,079,360.23 = 442,747.42 : x
  2. Step 2: Convert to fraction form
    782,279.17/1,079,360.23 = 442,747.42/x
  3. Step 3: Cross multiply
    782,279.17x = 1,079,360.23 × 442,747.42
  4. Step 4: Simplify right side
    782,279.17x = 477,883,957,083.11
  5. Step 5: Solve for x
    x = 477,883,957,083.11/782,279.17
  6. Step 6: Final answer
    x = 610,886.72

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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.