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Finding the Fourth Proportional to 625,452.84, 863,126.42 and 338,972.85

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Solution

The fourth proportional to 625,452.84, 863,126.42 and 338,972.85 is: 467,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,452.84 : 863,126.42 = 338,972.85 : x
  2. Step 2: Convert to fraction form
    625,452.84/863,126.42 = 338,972.85/x
  3. Step 3: Cross multiply
    625,452.84x = 863,126.42 × 338,972.85
  4. Step 4: Simplify right side
    625,452.84x = 292,576,420,802.83
  5. Step 5: Solve for x
    x = 292,576,420,802.83/625,452.84
  6. Step 6: Final answer
    x = 467,783.34

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1.5x scale

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.