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Finding the Fourth Proportional to 490,882.20, 736,323.30 and 402,235.80

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Solution

The fourth proportional to 490,882.20, 736,323.30 and 402,235.80 is: 603,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,882.20 : 736,323.30 = 402,235.80 : x
  2. Step 2: Convert to fraction form
    490,882.20/736,323.30 = 402,235.80/x
  3. Step 3: Cross multiply
    490,882.20x = 736,323.30 × 402,235.80
  4. Step 4: Simplify right side
    490,882.20x = 296,175,591,634.14
  5. Step 5: Solve for x
    x = 296,175,591,634.14/490,882.20
  6. Step 6: Final answer
    x = 603,353.70

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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.