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Finding the Fourth Proportional to 583.96, 876.33 and 389.18

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Solution

The fourth proportional to 583.96, 876.33 and 389.18 is: 584.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.96 : 876.33 = 389.18 : x
  2. Step 2: Convert to fraction form
    583.96/876.33 = 389.18/x
  3. Step 3: Cross multiply
    583.96x = 876.33 × 389.18
  4. Step 4: Simplify right side
    583.96x = 341,050.11
  5. Step 5: Solve for x
    x = 341,050.11/583.96
  6. Step 6: Final answer
    x = 584.03

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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.