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Finding the Fourth Proportional to 479,594.68, 662,105.82 and 288,655

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Solution

The fourth proportional to 479,594.68, 662,105.82 and 288,655 is: 398,503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,594.68 : 662,105.82 = 288,655 : x
  2. Step 2: Convert to fraction form
    479,594.68/662,105.82 = 288,655/x
  3. Step 3: Cross multiply
    479,594.68x = 662,105.82 × 288,655
  4. Step 4: Simplify right side
    479,594.68x = 191,120,155,472.10
  5. Step 5: Solve for x
    x = 191,120,155,472.10/479,594.68
  6. Step 6: Final answer
    x = 398,503.49

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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.