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Finding the Fourth Proportional to 706,704.01, 1,060,406.28 and 280,230.68

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Solution

The fourth proportional to 706,704.01, 1,060,406.28 and 280,230.68 is: 420,484.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,704.01 : 1,060,406.28 = 280,230.68 : x
  2. Step 2: Convert to fraction form
    706,704.01/1,060,406.28 = 280,230.68/x
  3. Step 3: Cross multiply
    706,704.01x = 1,060,406.28 × 280,230.68
  4. Step 4: Simplify right side
    706,704.01x = 297,158,375,571.69
  5. Step 5: Solve for x
    x = 297,158,375,571.69/706,704.01
  6. Step 6: Final answer
    x = 420,484.92

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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.