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Finding the Fourth Proportional to 625,505.43, 863,277.43 and 349,878.60

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Solution

The fourth proportional to 625,505.43, 863,277.43 and 349,878.60 is: 482,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,505.43 : 863,277.43 = 349,878.60 : x
  2. Step 2: Convert to fraction form
    625,505.43/863,277.43 = 349,878.60/x
  3. Step 3: Cross multiply
    625,505.43x = 863,277.43 × 349,878.60
  4. Step 4: Simplify right side
    625,505.43x = 302,042,298,620.00
  5. Step 5: Solve for x
    x = 302,042,298,620.00/625,505.43
  6. Step 6: Final answer
    x = 482,877.18

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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.