Home / 744.03-1,115.70-397.27

Finding the Fourth Proportional to 744.03, 1,115.70 and 397.27

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Solution

The fourth proportional to 744.03, 1,115.70 and 397.27 is: 595.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.03 : 1,115.70 = 397.27 : x
  2. Step 2: Convert to fraction form
    744.03/1,115.70 = 397.27/x
  3. Step 3: Cross multiply
    744.03x = 1,115.70 × 397.27
  4. Step 4: Simplify right side
    744.03x = 443,234.14
  5. Step 5: Solve for x
    x = 443,234.14/744.03
  6. Step 6: Final answer
    x = 595.72

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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.