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Finding the Fourth Proportional to 521,495.52, 781,035.12 and 444,760.80

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Solution

The fourth proportional to 521,495.52, 781,035.12 and 444,760.80 is: 666,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,495.52 : 781,035.12 = 444,760.80 : x
  2. Step 2: Convert to fraction form
    521,495.52/781,035.12 = 444,760.80/x
  3. Step 3: Cross multiply
    521,495.52x = 781,035.12 × 444,760.80
  4. Step 4: Simplify right side
    521,495.52x = 347,373,804,799.30
  5. Step 5: Solve for x
    x = 347,373,804,799.30/521,495.52
  6. Step 6: Final answer
    x = 666,110.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.