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Finding the Fourth Proportional to 543.47, 748.73 and 444.65

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Solution

The fourth proportional to 543.47, 748.73 and 444.65 is: 612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.47 : 748.73 = 444.65 : x
  2. Step 2: Convert to fraction form
    543.47/748.73 = 444.65/x
  3. Step 3: Cross multiply
    543.47x = 748.73 × 444.65
  4. Step 4: Simplify right side
    543.47x = 332,920.57
  5. Step 5: Solve for x
    x = 332,920.57/543.47
  6. Step 6: Final answer
    x = 612.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.