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Finding the Fourth Proportional to 392,590.60, 541,734.34 and 220,527.88

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Solution

The fourth proportional to 392,590.60, 541,734.34 and 220,527.88 is: 304,305.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,590.60 : 541,734.34 = 220,527.88 : x
  2. Step 2: Convert to fraction form
    392,590.60/541,734.34 = 220,527.88/x
  3. Step 3: Cross multiply
    392,590.60x = 541,734.34 × 220,527.88
  4. Step 4: Simplify right side
    392,590.60x = 119,467,525,523.40
  5. Step 5: Solve for x
    x = 119,467,525,523.40/392,590.60
  6. Step 6: Final answer
    x = 304,305.62

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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.