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Finding the Fourth Proportional to 609,176.72, 840,763.72 and 418,033.04

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Solution

The fourth proportional to 609,176.72, 840,763.72 and 418,033.04 is: 576,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,176.72 : 840,763.72 = 418,033.04 : x
  2. Step 2: Convert to fraction form
    609,176.72/840,763.72 = 418,033.04/x
  3. Step 3: Cross multiply
    609,176.72x = 840,763.72 × 418,033.04
  4. Step 4: Simplify right side
    609,176.72x = 351,467,013,793.31
  5. Step 5: Solve for x
    x = 351,467,013,793.31/609,176.72
  6. Step 6: Final answer
    x = 576,954.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.