Home / 591,081.12-815,691.84-322,809.12

Finding the Fourth Proportional to 591,081.12, 815,691.84 and 322,809.12

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Solution

The fourth proportional to 591,081.12, 815,691.84 and 322,809.12 is: 445,476.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,081.12 : 815,691.84 = 322,809.12 : x
  2. Step 2: Convert to fraction form
    591,081.12/815,691.84 = 322,809.12/x
  3. Step 3: Cross multiply
    591,081.12x = 815,691.84 × 322,809.12
  4. Step 4: Simplify right side
    591,081.12x = 263,312,765,061.58
  5. Step 5: Solve for x
    x = 263,312,765,061.58/591,081.12
  6. Step 6: Final answer
    x = 445,476.53

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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.