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Finding the Fourth Proportional to 748.08, 1,124.55 and 461.34

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Solution

The fourth proportional to 748.08, 1,124.55 and 461.34 is: 693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.08 : 1,124.55 = 461.34 : x
  2. Step 2: Convert to fraction form
    748.08/1,124.55 = 461.34/x
  3. Step 3: Cross multiply
    748.08x = 1,124.55 × 461.34
  4. Step 4: Simplify right side
    748.08x = 518,799.90
  5. Step 5: Solve for x
    x = 518,799.90/748.08
  6. Step 6: Final answer
    x = 693.51

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1.5x scale

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.