Home / 792.14-1,186.98-445.04

Finding the Fourth Proportional to 792.14, 1,186.98 and 445.04

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Solution

The fourth proportional to 792.14, 1,186.98 and 445.04 is: 666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.14 : 1,186.98 = 445.04 : x
  2. Step 2: Convert to fraction form
    792.14/1,186.98 = 445.04/x
  3. Step 3: Cross multiply
    792.14x = 1,186.98 × 445.04
  4. Step 4: Simplify right side
    792.14x = 528,253.58
  5. Step 5: Solve for x
    x = 528,253.58/792.14
  6. Step 6: Final answer
    x = 666.87

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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.