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Finding the Fourth Proportional to 625,873.24, 863,705.07 and 339,393.55

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Solution

The fourth proportional to 625,873.24, 863,705.07 and 339,393.55 is: 468,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,873.24 : 863,705.07 = 339,393.55 : x
  2. Step 2: Convert to fraction form
    625,873.24/863,705.07 = 339,393.55/x
  3. Step 3: Cross multiply
    625,873.24x = 863,705.07 × 339,393.55
  4. Step 4: Simplify right side
    625,873.24x = 293,135,929,689.15
  5. Step 5: Solve for x
    x = 293,135,929,689.15/625,873.24
  6. Step 6: Final answer
    x = 468,363.10

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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.