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Finding the Fourth Proportional to 489,168.60, 733,752.90 and 355,324.20

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Solution

The fourth proportional to 489,168.60, 733,752.90 and 355,324.20 is: 532,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,168.60 : 733,752.90 = 355,324.20 : x
  2. Step 2: Convert to fraction form
    489,168.60/733,752.90 = 355,324.20/x
  3. Step 3: Cross multiply
    489,168.60x = 733,752.90 × 355,324.20
  4. Step 4: Simplify right side
    489,168.60x = 260,720,162,190.18
  5. Step 5: Solve for x
    x = 260,720,162,190.18/489,168.60
  6. Step 6: Final answer
    x = 532,986.30

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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.