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Finding the Fourth Proportional to 444,842.20, 667,263.30 and 287,248.60

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Solution

The fourth proportional to 444,842.20, 667,263.30 and 287,248.60 is: 430,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,842.20 : 667,263.30 = 287,248.60 : x
  2. Step 2: Convert to fraction form
    444,842.20/667,263.30 = 287,248.60/x
  3. Step 3: Cross multiply
    444,842.20x = 667,263.30 × 287,248.60
  4. Step 4: Simplify right side
    444,842.20x = 191,670,448,756.38
  5. Step 5: Solve for x
    x = 191,670,448,756.38/444,842.20
  6. Step 6: Final answer
    x = 430,872.90

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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.