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Finding the Fourth Proportional to 574,640.69, 861,369.61 and 254,943.12

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Solution

The fourth proportional to 574,640.69, 861,369.61 and 254,943.12 is: 382,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,640.69 : 861,369.61 = 254,943.12 : x
  2. Step 2: Convert to fraction form
    574,640.69/861,369.61 = 254,943.12/x
  3. Step 3: Cross multiply
    574,640.69x = 861,369.61 × 254,943.12
  4. Step 4: Simplify right side
    574,640.69x = 219,600,255,846.58
  5. Step 5: Solve for x
    x = 219,600,255,846.58/574,640.69
  6. Step 6: Final answer
    x = 382,152.29

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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.