Home / 331,061.20-497,628.60-324,840.40

Finding the Fourth Proportional to 331,061.20, 497,628.60 and 324,840.40

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Solution

The fourth proportional to 331,061.20, 497,628.60 and 324,840.40 is: 488,277.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,061.20 : 497,628.60 = 324,840.40 : x
  2. Step 2: Convert to fraction form
    331,061.20/497,628.60 = 324,840.40/x
  3. Step 3: Cross multiply
    331,061.20x = 497,628.60 × 324,840.40
  4. Step 4: Simplify right side
    331,061.20x = 161,649,873,475.44
  5. Step 5: Solve for x
    x = 161,649,873,475.44/331,061.20
  6. Step 6: Final answer
    x = 488,277.92

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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.