Home / 438,932.48-658,398.74-123,389.42

Finding the Fourth Proportional to 438,932.48, 658,398.74 and 123,389.42

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Solution

The fourth proportional to 438,932.48, 658,398.74 and 123,389.42 is: 185,084.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,932.48 : 658,398.74 = 123,389.42 : x
  2. Step 2: Convert to fraction form
    438,932.48/658,398.74 = 123,389.42/x
  3. Step 3: Cross multiply
    438,932.48x = 658,398.74 × 123,389.42
  4. Step 4: Simplify right side
    438,932.48x = 81,239,434,748.39
  5. Step 5: Solve for x
    x = 81,239,434,748.39/438,932.48
  6. Step 6: Final answer
    x = 185,084.13

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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.