Home / 740.18-1,110.53-329.61

Finding the Fourth Proportional to 740.18, 1,110.53 and 329.61

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Solution

The fourth proportional to 740.18, 1,110.53 and 329.61 is: 494.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.18 : 1,110.53 = 329.61 : x
  2. Step 2: Convert to fraction form
    740.18/1,110.53 = 329.61/x
  3. Step 3: Cross multiply
    740.18x = 1,110.53 × 329.61
  4. Step 4: Simplify right side
    740.18x = 366,041.79
  5. Step 5: Solve for x
    x = 366,041.79/740.18
  6. Step 6: Final answer
    x = 494.53

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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.