Home / 686,997.15-948,071.26-381,063.56

Finding the Fourth Proportional to 686,997.15, 948,071.26 and 381,063.56

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Solution

The fourth proportional to 686,997.15, 948,071.26 and 381,063.56 is: 525,876.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,997.15 : 948,071.26 = 381,063.56 : x
  2. Step 2: Convert to fraction form
    686,997.15/948,071.26 = 381,063.56/x
  3. Step 3: Cross multiply
    686,997.15x = 948,071.26 × 381,063.56
  4. Step 4: Simplify right side
    686,997.15x = 361,275,412,132.87
  5. Step 5: Solve for x
    x = 361,275,412,132.87/686,997.15
  6. Step 6: Final answer
    x = 525,876.15

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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.