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Finding the Fourth Proportional to 625,508.43, 863,281.57 and 349,881.60

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Solution

The fourth proportional to 625,508.43, 863,281.57 and 349,881.60 is: 482,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,508.43 : 863,281.57 = 349,881.60 : x
  2. Step 2: Convert to fraction form
    625,508.43/863,281.57 = 349,881.60/x
  3. Step 3: Cross multiply
    625,508.43x = 863,281.57 × 349,881.60
  4. Step 4: Simplify right side
    625,508.43x = 302,046,336,962.11
  5. Step 5: Solve for x
    x = 302,046,336,962.11/625,508.43
  6. Step 6: Final answer
    x = 482,881.32

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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.