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Finding the Fourth Proportional to 694,474.80, 958,370.04 and 392,679.60

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Solution

The fourth proportional to 694,474.80, 958,370.04 and 392,679.60 is: 541,894.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,474.80 : 958,370.04 = 392,679.60 : x
  2. Step 2: Convert to fraction form
    694,474.80/958,370.04 = 392,679.60/x
  3. Step 3: Cross multiply
    694,474.80x = 958,370.04 × 392,679.60
  4. Step 4: Simplify right side
    694,474.80x = 376,332,363,959.18
  5. Step 5: Solve for x
    x = 376,332,363,959.18/694,474.80
  6. Step 6: Final answer
    x = 541,894.92

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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.