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Finding the Fourth Proportional to 744.26, 1,123.06 and 714.29

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Solution

The fourth proportional to 744.26, 1,123.06 and 714.29 is: 1,077.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.26 : 1,123.06 = 714.29 : x
  2. Step 2: Convert to fraction form
    744.26/1,123.06 = 714.29/x
  3. Step 3: Cross multiply
    744.26x = 1,123.06 × 714.29
  4. Step 4: Simplify right side
    744.26x = 802,186.96
  5. Step 5: Solve for x
    x = 802,186.96/744.26
  6. Step 6: Final answer
    x = 1,077.83

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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.