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Finding the Fourth Proportional to 479,593.68, 662,104.44 and 288,654

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Solution

The fourth proportional to 479,593.68, 662,104.44 and 288,654 is: 398,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,593.68 : 662,104.44 = 288,654 : x
  2. Step 2: Convert to fraction form
    479,593.68/662,104.44 = 288,654/x
  3. Step 3: Cross multiply
    479,593.68x = 662,104.44 × 288,654
  4. Step 4: Simplify right side
    479,593.68x = 191,119,095,023.76
  5. Step 5: Solve for x
    x = 191,119,095,023.76/479,593.68
  6. Step 6: Final answer
    x = 398,502.11

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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.