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Finding the Fourth Proportional to 750.37, 1,124.41 and 475.63

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Solution

The fourth proportional to 750.37, 1,124.41 and 475.63 is: 712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.37 : 1,124.41 = 475.63 : x
  2. Step 2: Convert to fraction form
    750.37/1,124.41 = 475.63/x
  3. Step 3: Cross multiply
    750.37x = 1,124.41 × 475.63
  4. Step 4: Simplify right side
    750.37x = 534,799.13
  5. Step 5: Solve for x
    x = 534,799.13/750.37
  6. Step 6: Final answer
    x = 712.72

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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.