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Finding the Fourth Proportional to 754.42, 1,041.70 and 502.59

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Solution

The fourth proportional to 754.42, 1,041.70 and 502.59 is: 693.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    754.42 : 1,041.70 = 502.59 : x
  2. Step 2: Convert to fraction form
    754.42/1,041.70 = 502.59/x
  3. Step 3: Cross multiply
    754.42x = 1,041.70 × 502.59
  4. Step 4: Simplify right side
    754.42x = 523,546.75
  5. Step 5: Solve for x
    x = 523,546.75/754.42
  6. Step 6: Final answer
    x = 693.97

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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.