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Finding the Fourth Proportional to 492,081.15, 738,121.73 and 487,933.95

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Solution

The fourth proportional to 492,081.15, 738,121.73 and 487,933.95 is: 731,900.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,081.15 : 738,121.73 = 487,933.95 : x
  2. Step 2: Convert to fraction form
    492,081.15/738,121.73 = 487,933.95/x
  3. Step 3: Cross multiply
    492,081.15x = 738,121.73 × 487,933.95
  4. Step 4: Simplify right side
    492,081.15x = 360,154,651,299.73
  5. Step 5: Solve for x
    x = 360,154,651,299.73/492,081.15
  6. Step 6: Final answer
    x = 731,900.93

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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.