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Finding the Fourth Proportional to 520,957.08, 781,451.82 and 179,397

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Solution

The fourth proportional to 520,957.08, 781,451.82 and 179,397 is: 269,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,957.08 : 781,451.82 = 179,397 : x
  2. Step 2: Convert to fraction form
    520,957.08/781,451.82 = 179,397/x
  3. Step 3: Cross multiply
    520,957.08x = 781,451.82 × 179,397
  4. Step 4: Simplify right side
    520,957.08x = 140,190,112,152.54
  5. Step 5: Solve for x
    x = 140,190,112,152.54/520,957.08
  6. Step 6: Final answer
    x = 269,101.08

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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.