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Finding the Fourth Proportional to 750.41, 1,124.92 and 384.39

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Solution

The fourth proportional to 750.41, 1,124.92 and 384.39 is: 576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.41 : 1,124.92 = 384.39 : x
  2. Step 2: Convert to fraction form
    750.41/1,124.92 = 384.39/x
  3. Step 3: Cross multiply
    750.41x = 1,124.92 × 384.39
  4. Step 4: Simplify right side
    750.41x = 432,408.00
  5. Step 5: Solve for x
    x = 432,408.00/750.41
  6. Step 6: Final answer
    x = 576.23

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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.