Home / 438,589.20-657,903.24-123,039.12

Finding the Fourth Proportional to 438,589.20, 657,903.24 and 123,039.12

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Solution

The fourth proportional to 438,589.20, 657,903.24 and 123,039.12 is: 184,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,589.20 : 657,903.24 = 123,039.12 : x
  2. Step 2: Convert to fraction form
    438,589.20/657,903.24 = 123,039.12/x
  3. Step 3: Cross multiply
    438,589.20x = 657,903.24 × 123,039.12
  4. Step 4: Simplify right side
    438,589.20x = 80,947,835,694.75
  5. Step 5: Solve for x
    x = 80,947,835,694.75/438,589.20
  6. Step 6: Final answer
    x = 184,564.13

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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.