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Finding the Fourth Proportional to 1,124.37, 1,687.01 and 576.27

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Solution

The fourth proportional to 1,124.37, 1,687.01 and 576.27 is: 864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.37 : 1,687.01 = 576.27 : x
  2. Step 2: Convert to fraction form
    1,124.37/1,687.01 = 576.27/x
  3. Step 3: Cross multiply
    1,124.37x = 1,687.01 × 576.27
  4. Step 4: Simplify right side
    1,124.37x = 972,170.37
  5. Step 5: Solve for x
    x = 972,170.37/1,124.37
  6. Step 6: Final answer
    x = 864.64

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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.