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Finding the Fourth Proportional to 493,438.87, 739,561.87 and 240,340.11

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Solution

The fourth proportional to 493,438.87, 739,561.87 and 240,340.11 is: 360,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,438.87 : 739,561.87 = 240,340.11 : x
  2. Step 2: Convert to fraction form
    493,438.87/739,561.87 = 240,340.11/x
  3. Step 3: Cross multiply
    493,438.87x = 739,561.87 × 240,340.11
  4. Step 4: Simplify right side
    493,438.87x = 177,746,381,187.61
  5. Step 5: Solve for x
    x = 177,746,381,187.61/493,438.87
  6. Step 6: Final answer
    x = 360,219.66

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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.