Home / 478,568.18-660,418.58-271,835.15

Finding the Fourth Proportional to 478,568.18, 660,418.58 and 271,835.15

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Solution

The fourth proportional to 478,568.18, 660,418.58 and 271,835.15 is: 375,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,568.18 : 660,418.58 = 271,835.15 : x
  2. Step 2: Convert to fraction form
    478,568.18/660,418.58 = 271,835.15/x
  3. Step 3: Cross multiply
    478,568.18x = 660,418.58 × 271,835.15
  4. Step 4: Simplify right side
    478,568.18x = 179,524,981,134.58
  5. Step 5: Solve for x
    x = 179,524,981,134.58/478,568.18
  6. Step 6: Final answer
    x = 375,129.37

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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.