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Finding the Fourth Proportional to 454,400.78, 627,070.25 and 247,668.93

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Solution

The fourth proportional to 454,400.78, 627,070.25 and 247,668.93 is: 341,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,400.78 : 627,070.25 = 247,668.93 : x
  2. Step 2: Convert to fraction form
    454,400.78/627,070.25 = 247,668.93/x
  3. Step 3: Cross multiply
    454,400.78x = 627,070.25 × 247,668.93
  4. Step 4: Simplify right side
    454,400.78x = 155,305,816,613.99
  5. Step 5: Solve for x
    x = 155,305,816,613.99/454,400.78
  6. Step 6: Final answer
    x = 341,781.58

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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.