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Finding the Fourth Proportional to 598,620.20, 897,930.30 and 521,637.80

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Solution

The fourth proportional to 598,620.20, 897,930.30 and 521,637.80 is: 782,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,620.20 : 897,930.30 = 521,637.80 : x
  2. Step 2: Convert to fraction form
    598,620.20/897,930.30 = 521,637.80/x
  3. Step 3: Cross multiply
    598,620.20x = 897,930.30 × 521,637.80
  4. Step 4: Simplify right side
    598,620.20x = 468,394,386,245.34
  5. Step 5: Solve for x
    x = 468,394,386,245.34/598,620.20
  6. Step 6: Final answer
    x = 782,456.70

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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.