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Finding the Fourth Proportional to 754.07, 1,045.43 and 727.34

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Solution

The fourth proportional to 754.07, 1,045.43 and 727.34 is: 1,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    754.07 : 1,045.43 = 727.34 : x
  2. Step 2: Convert to fraction form
    754.07/1,045.43 = 727.34/x
  3. Step 3: Cross multiply
    754.07x = 1,045.43 × 727.34
  4. Step 4: Simplify right side
    754.07x = 760,376.92
  5. Step 5: Solve for x
    x = 760,376.92/754.07
  6. Step 6: Final answer
    x = 1,008.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.