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Finding the Fourth Proportional to 489,171.30, 734,121.45 and 252,392.10

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Solution

The fourth proportional to 489,171.30, 734,121.45 and 252,392.10 is: 378,776.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,171.30 : 734,121.45 = 252,392.10 : x
  2. Step 2: Convert to fraction form
    489,171.30/734,121.45 = 252,392.10/x
  3. Step 3: Cross multiply
    489,171.30x = 734,121.45 × 252,392.10
  4. Step 4: Simplify right side
    489,171.30x = 185,286,454,420.55
  5. Step 5: Solve for x
    x = 185,286,454,420.55/489,171.30
  6. Step 6: Final answer
    x = 378,776.22

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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.