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Finding the Fourth Proportional to 489,062.60, 733,593.90 and 330,432.20

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Solution

The fourth proportional to 489,062.60, 733,593.90 and 330,432.20 is: 495,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,062.60 : 733,593.90 = 330,432.20 : x
  2. Step 2: Convert to fraction form
    489,062.60/733,593.90 = 330,432.20/x
  3. Step 3: Cross multiply
    489,062.60x = 733,593.90 × 330,432.20
  4. Step 4: Simplify right side
    489,062.60x = 242,403,046,283.58
  5. Step 5: Solve for x
    x = 242,403,046,283.58/489,062.60
  6. Step 6: Final answer
    x = 495,648.30

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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.