Home / 740.12-1,110.30-493.88

Finding the Fourth Proportional to 740.12, 1,110.30 and 493.88

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Solution

The fourth proportional to 740.12, 1,110.30 and 493.88 is: 740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.12 : 1,110.30 = 493.88 : x
  2. Step 2: Convert to fraction form
    740.12/1,110.30 = 493.88/x
  3. Step 3: Cross multiply
    740.12x = 1,110.30 × 493.88
  4. Step 4: Simplify right side
    740.12x = 548,354.96
  5. Step 5: Solve for x
    x = 548,354.96/740.12
  6. Step 6: Final answer
    x = 740.90

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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.