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Finding the Fourth Proportional to 1,164.29, 1,745.96 and 578.86

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Solution

The fourth proportional to 1,164.29, 1,745.96 and 578.86 is: 868.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.29 : 1,745.96 = 578.86 : x
  2. Step 2: Convert to fraction form
    1,164.29/1,745.96 = 578.86/x
  3. Step 3: Cross multiply
    1,164.29x = 1,745.96 × 578.86
  4. Step 4: Simplify right side
    1,164.29x = 1,010,663.49
  5. Step 5: Solve for x
    x = 1,010,663.49/1,164.29
  6. Step 6: Final answer
    x = 868.06

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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.