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Finding the Fourth Proportional to 625,650.40, 863,401.98 and 339,175

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Solution

The fourth proportional to 625,650.40, 863,401.98 and 339,175 is: 468,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,650.40 : 863,401.98 = 339,175 : x
  2. Step 2: Convert to fraction form
    625,650.40/863,401.98 = 339,175/x
  3. Step 3: Cross multiply
    625,650.40x = 863,401.98 × 339,175
  4. Step 4: Simplify right side
    625,650.40x = 292,844,366,566.50
  5. Step 5: Solve for x
    x = 292,844,366,566.50/625,650.40
  6. Step 6: Final answer
    x = 468,063.90

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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.