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Finding the Fourth Proportional to 577,324.80, 865,987.20 and 367,891.20

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Solution

The fourth proportional to 577,324.80, 865,987.20 and 367,891.20 is: 551,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,324.80 : 865,987.20 = 367,891.20 : x
  2. Step 2: Convert to fraction form
    577,324.80/865,987.20 = 367,891.20/x
  3. Step 3: Cross multiply
    577,324.80x = 865,987.20 × 367,891.20
  4. Step 4: Simplify right side
    577,324.80x = 318,589,070,192.64
  5. Step 5: Solve for x
    x = 318,589,070,192.64/577,324.80
  6. Step 6: Final answer
    x = 551,836.80

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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.