Home / 916,757.75-1,375,381.19-317,718.41

Finding the Fourth Proportional to 916,757.75, 1,375,381.19 and 317,718.41

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Solution

The fourth proportional to 916,757.75, 1,375,381.19 and 317,718.41 is: 476,662.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,757.75 : 1,375,381.19 = 317,718.41 : x
  2. Step 2: Convert to fraction form
    916,757.75/1,375,381.19 = 317,718.41/x
  3. Step 3: Cross multiply
    916,757.75x = 1,375,381.19 × 317,718.41
  4. Step 4: Simplify right side
    916,757.75x = 436,983,924,830.71
  5. Step 5: Solve for x
    x = 436,983,924,830.71/916,757.75
  6. Step 6: Final answer
    x = 476,662.37

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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.