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Finding the Fourth Proportional to 550,685.90, 826,632.22 and 437,560.86

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Solution

The fourth proportional to 550,685.90, 826,632.22 and 437,560.86 is: 656,820.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,685.90 : 826,632.22 = 437,560.86 : x
  2. Step 2: Convert to fraction form
    550,685.90/826,632.22 = 437,560.86/x
  3. Step 3: Cross multiply
    550,685.90x = 826,632.22 × 437,560.86
  4. Step 4: Simplify right side
    550,685.90x = 361,701,905,086.91
  5. Step 5: Solve for x
    x = 361,701,905,086.91/550,685.90
  6. Step 6: Final answer
    x = 656,820.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.