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Finding the Fourth Proportional to 407,642.38, 610,797.73 and 247,767.21

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Solution

The fourth proportional to 407,642.38, 610,797.73 and 247,767.21 is: 371,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,642.38 : 610,797.73 = 247,767.21 : x
  2. Step 2: Convert to fraction form
    407,642.38/610,797.73 = 247,767.21/x
  3. Step 3: Cross multiply
    407,642.38x = 610,797.73 × 247,767.21
  4. Step 4: Simplify right side
    407,642.38x = 151,335,649,436.43
  5. Step 5: Solve for x
    x = 151,335,649,436.43/407,642.38
  6. Step 6: Final answer
    x = 371,246.11

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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.