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Finding the Fourth Proportional to 532,135.20, 798,202.80 and 521,637.60

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Solution

The fourth proportional to 532,135.20, 798,202.80 and 521,637.60 is: 782,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,135.20 : 798,202.80 = 521,637.60 : x
  2. Step 2: Convert to fraction form
    532,135.20/798,202.80 = 521,637.60/x
  3. Step 3: Cross multiply
    532,135.20x = 798,202.80 × 521,637.60
  4. Step 4: Simplify right side
    532,135.20x = 416,372,592,905.28
  5. Step 5: Solve for x
    x = 416,372,592,905.28/532,135.20
  6. Step 6: Final answer
    x = 782,456.40

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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.