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Finding the Fourth Proportional to 704.44, 1,056.77 and 574.13

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Solution

The fourth proportional to 704.44, 1,056.77 and 574.13 is: 861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.44 : 1,056.77 = 574.13 : x
  2. Step 2: Convert to fraction form
    704.44/1,056.77 = 574.13/x
  3. Step 3: Cross multiply
    704.44x = 1,056.77 × 574.13
  4. Step 4: Simplify right side
    704.44x = 606,727.44
  5. Step 5: Solve for x
    x = 606,727.44/704.44
  6. Step 6: Final answer
    x = 861.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.