Home / 438,826.48-658,239.72-123,286.12

Finding the Fourth Proportional to 438,826.48, 658,239.72 and 123,286.12

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Solution

The fourth proportional to 438,826.48, 658,239.72 and 123,286.12 is: 184,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,826.48 : 658,239.72 = 123,286.12 : x
  2. Step 2: Convert to fraction form
    438,826.48/658,239.72 = 123,286.12/x
  3. Step 3: Cross multiply
    438,826.48x = 658,239.72 × 123,286.12
  4. Step 4: Simplify right side
    438,826.48x = 81,151,821,108.69
  5. Step 5: Solve for x
    x = 81,151,821,108.69/438,826.48
  6. Step 6: Final answer
    x = 184,929.18

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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.