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Finding the Fourth Proportional to 694,600.80, 1,041,901.20 and 396,002.40

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Solution

The fourth proportional to 694,600.80, 1,041,901.20 and 396,002.40 is: 594,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,600.80 : 1,041,901.20 = 396,002.40 : x
  2. Step 2: Convert to fraction form
    694,600.80/1,041,901.20 = 396,002.40/x
  3. Step 3: Cross multiply
    694,600.80x = 1,041,901.20 × 396,002.40
  4. Step 4: Simplify right side
    694,600.80x = 412,595,375,762.88
  5. Step 5: Solve for x
    x = 412,595,375,762.88/694,600.80
  6. Step 6: Final answer
    x = 594,003.60

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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.