Home / 781,221.92-1,078,115.28-441,669.92

Finding the Fourth Proportional to 781,221.92, 1,078,115.28 and 441,669.92

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Solution

The fourth proportional to 781,221.92, 1,078,115.28 and 441,669.92 is: 609,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,221.92 : 1,078,115.28 = 441,669.92 : x
  2. Step 2: Convert to fraction form
    781,221.92/1,078,115.28 = 441,669.92/x
  3. Step 3: Cross multiply
    781,221.92x = 1,078,115.28 × 441,669.92
  4. Step 4: Simplify right side
    781,221.92x = 476,171,089,468.38
  5. Step 5: Solve for x
    x = 476,171,089,468.38/781,221.92
  6. Step 6: Final answer
    x = 609,520.90

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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.