Home / 421,988.13-582,353.96-231,001.07

Finding the Fourth Proportional to 421,988.13, 582,353.96 and 231,001.07

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Solution

The fourth proportional to 421,988.13, 582,353.96 and 231,001.07 is: 318,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,988.13 : 582,353.96 = 231,001.07 : x
  2. Step 2: Convert to fraction form
    421,988.13/582,353.96 = 231,001.07/x
  3. Step 3: Cross multiply
    421,988.13x = 582,353.96 × 231,001.07
  4. Step 4: Simplify right side
    421,988.13x = 134,524,383,811.96
  5. Step 5: Solve for x
    x = 134,524,383,811.96/421,988.13
  6. Step 6: Final answer
    x = 318,787.13

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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.