Home / 916,757.25-1,375,380.44-317,717.91

Finding the Fourth Proportional to 916,757.25, 1,375,380.44 and 317,717.91

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Solution

The fourth proportional to 916,757.25, 1,375,380.44 and 317,717.91 is: 476,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,757.25 : 1,375,380.44 = 317,717.91 : x
  2. Step 2: Convert to fraction form
    916,757.25/1,375,380.44 = 317,717.91/x
  3. Step 3: Cross multiply
    916,757.25x = 1,375,380.44 × 317,717.91
  4. Step 4: Simplify right side
    916,757.25x = 436,982,998,851.68
  5. Step 5: Solve for x
    x = 436,982,998,851.68/916,757.25
  6. Step 6: Final answer
    x = 476,661.62

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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.