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Finding the Fourth Proportional to 753.33, 1,135.03 and 680.29

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Solution

The fourth proportional to 753.33, 1,135.03 and 680.29 is: 1,024.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.33 : 1,135.03 = 680.29 : x
  2. Step 2: Convert to fraction form
    753.33/1,135.03 = 680.29/x
  3. Step 3: Cross multiply
    753.33x = 1,135.03 × 680.29
  4. Step 4: Simplify right side
    753.33x = 772,146.16
  5. Step 5: Solve for x
    x = 772,146.16/753.33
  6. Step 6: Final answer
    x = 1,024.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.