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Finding the Fourth Proportional to 750, 1,036.01 and 680.14

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Solution

The fourth proportional to 750, 1,036.01 and 680.14 is: 939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    750 : 1,036.01 = 680.14 : x
  2. Step 2: Convert to fraction form
    750/1,036.01 = 680.14/x
  3. Step 3: Cross multiply
    750x = 1,036.01 × 680.14
  4. Step 4: Simplify right side
    750x = 704,623.26
  5. Step 5: Solve for x
    x = 704,623.26/750
  6. Step 6: Final answer
    x = 939.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.