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Finding the Fourth Proportional to 625,494.84, 939,542.04 and 505,687.20

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Solution

The fourth proportional to 625,494.84, 939,542.04 and 505,687.20 is: 759,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,494.84 : 939,542.04 = 505,687.20 : x
  2. Step 2: Convert to fraction form
    625,494.84/939,542.04 = 505,687.20/x
  3. Step 3: Cross multiply
    625,494.84x = 939,542.04 × 505,687.20
  4. Step 4: Simplify right side
    625,494.84x = 475,114,383,489.89
  5. Step 5: Solve for x
    x = 475,114,383,489.89/625,494.84
  6. Step 6: Final answer
    x = 759,581.62

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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.