Home / 916,758.75-1,375,382.69-317,719.41

Finding the Fourth Proportional to 916,758.75, 1,375,382.69 and 317,719.41

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Solution

The fourth proportional to 916,758.75, 1,375,382.69 and 317,719.41 is: 476,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,758.75 : 1,375,382.69 = 317,719.41 : x
  2. Step 2: Convert to fraction form
    916,758.75/1,375,382.69 = 317,719.41/x
  3. Step 3: Cross multiply
    916,758.75x = 1,375,382.69 × 317,719.41
  4. Step 4: Simplify right side
    916,758.75x = 436,985,776,791.01
  5. Step 5: Solve for x
    x = 436,985,776,791.01/916,758.75
  6. Step 6: Final answer
    x = 476,663.87

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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.