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Finding the Fourth Proportional to 1,150.61, 1,725.54 and 492.48

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Solution

The fourth proportional to 1,150.61, 1,725.54 and 492.48 is: 738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.61 : 1,725.54 = 492.48 : x
  2. Step 2: Convert to fraction form
    1,150.61/1,725.54 = 492.48/x
  3. Step 3: Cross multiply
    1,150.61x = 1,725.54 × 492.48
  4. Step 4: Simplify right side
    1,150.61x = 849,793.94
  5. Step 5: Solve for x
    x = 849,793.94/1,150.61
  6. Step 6: Final answer
    x = 738.56

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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.