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Finding the Fourth Proportional to 543,192.38, 814,788.51 and 289,704.90

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Solution

The fourth proportional to 543,192.38, 814,788.51 and 289,704.90 is: 434,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,192.38 : 814,788.51 = 289,704.90 : x
  2. Step 2: Convert to fraction form
    543,192.38/814,788.51 = 289,704.90/x
  3. Step 3: Cross multiply
    543,192.38x = 814,788.51 × 289,704.90
  4. Step 4: Simplify right side
    543,192.38x = 236,048,223,810.70
  5. Step 5: Solve for x
    x = 236,048,223,810.70/543,192.38
  6. Step 6: Final answer
    x = 434,557.32

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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.