Home / 438,821.32-605,585.37-247,863.10

Finding the Fourth Proportional to 438,821.32, 605,585.37 and 247,863.10

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Solution

The fourth proportional to 438,821.32, 605,585.37 and 247,863.10 is: 342,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,821.32 : 605,585.37 = 247,863.10 : x
  2. Step 2: Convert to fraction form
    438,821.32/605,585.37 = 247,863.10/x
  3. Step 3: Cross multiply
    438,821.32x = 605,585.37 × 247,863.10
  4. Step 4: Simplify right side
    438,821.32x = 150,102,267,122.85
  5. Step 5: Solve for x
    x = 150,102,267,122.85/438,821.32
  6. Step 6: Final answer
    x = 342,057.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.