Home / 497,469.40-686,505.18-271,112.92

Finding the Fourth Proportional to 497,469.40, 686,505.18 and 271,112.92

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Solution

The fourth proportional to 497,469.40, 686,505.18 and 271,112.92 is: 374,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,469.40 : 686,505.18 = 271,112.92 : x
  2. Step 2: Convert to fraction form
    497,469.40/686,505.18 = 271,112.92/x
  3. Step 3: Cross multiply
    497,469.40x = 686,505.18 × 271,112.92
  4. Step 4: Simplify right side
    497,469.40x = 186,120,423,944.93
  5. Step 5: Solve for x
    x = 186,120,423,944.93/497,469.40
  6. Step 6: Final answer
    x = 374,134.42

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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.