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Finding the Fourth Proportional to 655,245.27, 904,517.47 and 440,509.88

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Solution

The fourth proportional to 655,245.27, 904,517.47 and 440,509.88 is: 608,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,245.27 : 904,517.47 = 440,509.88 : x
  2. Step 2: Convert to fraction form
    655,245.27/904,517.47 = 440,509.88/x
  3. Step 3: Cross multiply
    655,245.27x = 904,517.47 × 440,509.88
  4. Step 4: Simplify right side
    655,245.27x = 398,448,882,167.60
  5. Step 5: Solve for x
    x = 398,448,882,167.60/655,245.27
  6. Step 6: Final answer
    x = 608,091.20

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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.