Home / 331,085.20-497,664.60-324,864.40

Finding the Fourth Proportional to 331,085.20, 497,664.60 and 324,864.40

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Solution

The fourth proportional to 331,085.20, 497,664.60 and 324,864.40 is: 488,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,085.20 : 497,664.60 = 324,864.40 : x
  2. Step 2: Convert to fraction form
    331,085.20/497,664.60 = 324,864.40/x
  3. Step 3: Cross multiply
    331,085.20x = 497,664.60 × 324,864.40
  4. Step 4: Simplify right side
    331,085.20x = 161,673,511,680.24
  5. Step 5: Solve for x
    x = 161,673,511,680.24/331,085.20
  6. Step 6: Final answer
    x = 488,313.92

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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.