Home / 438,601.20-657,921.24-123,051.12

Finding the Fourth Proportional to 438,601.20, 657,921.24 and 123,051.12

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Solution

The fourth proportional to 438,601.20, 657,921.24 and 123,051.12 is: 184,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,601.20 : 657,921.24 = 123,051.12 : x
  2. Step 2: Convert to fraction form
    438,601.20/657,921.24 = 123,051.12/x
  3. Step 3: Cross multiply
    438,601.20x = 657,921.24 × 123,051.12
  4. Step 4: Simplify right side
    438,601.20x = 80,957,945,453.79
  5. Step 5: Solve for x
    x = 80,957,945,453.79/438,601.20
  6. Step 6: Final answer
    x = 184,582.13

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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.