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Finding the Fourth Proportional to 479,959.76, 662,385.48 and 265,123.28

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Solution

The fourth proportional to 479,959.76, 662,385.48 and 265,123.28 is: 365,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,959.76 : 662,385.48 = 265,123.28 : x
  2. Step 2: Convert to fraction form
    479,959.76/662,385.48 = 265,123.28/x
  3. Step 3: Cross multiply
    479,959.76x = 662,385.48 × 265,123.28
  4. Step 4: Simplify right side
    479,959.76x = 175,613,811,081.97
  5. Step 5: Solve for x
    x = 175,613,811,081.97/479,959.76
  6. Step 6: Final answer
    x = 365,892.78

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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.