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Finding the Fourth Proportional to 625,432.85, 863,100.43 and 338,952.94

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Solution

The fourth proportional to 625,432.85, 863,100.43 and 338,952.94 is: 467,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,432.85 : 863,100.43 = 338,952.94 : x
  2. Step 2: Convert to fraction form
    625,432.85/863,100.43 = 338,952.94/x
  3. Step 3: Cross multiply
    625,432.85x = 863,100.43 × 338,952.94
  4. Step 4: Simplify right side
    625,432.85x = 292,550,425,258.63
  5. Step 5: Solve for x
    x = 292,550,425,258.63/625,432.85
  6. Step 6: Final answer
    x = 467,756.73

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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.