Home / 716.03-1,073.40-387.14

Finding the Fourth Proportional to 716.03, 1,073.40 and 387.14

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Solution

The fourth proportional to 716.03, 1,073.40 and 387.14 is: 580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.03 : 1,073.40 = 387.14 : x
  2. Step 2: Convert to fraction form
    716.03/1,073.40 = 387.14/x
  3. Step 3: Cross multiply
    716.03x = 1,073.40 × 387.14
  4. Step 4: Simplify right side
    716.03x = 415,556.08
  5. Step 5: Solve for x
    x = 415,556.08/716.03
  6. Step 6: Final answer
    x = 580.36

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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.