Home / 781,760.70-1,078,833.76-442,221.66

Finding the Fourth Proportional to 781,760.70, 1,078,833.76 and 442,221.66

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Solution

The fourth proportional to 781,760.70, 1,078,833.76 and 442,221.66 is: 610,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,760.70 : 1,078,833.76 = 442,221.66 : x
  2. Step 2: Convert to fraction form
    781,760.70/1,078,833.76 = 442,221.66/x
  3. Step 3: Cross multiply
    781,760.70x = 1,078,833.76 × 442,221.66
  4. Step 4: Simplify right side
    781,760.70x = 477,083,656,211.24
  5. Step 5: Solve for x
    x = 477,083,656,211.24/781,760.70
  6. Step 6: Final answer
    x = 610,268.15

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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.