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Finding the Fourth Proportional to 771.01, 1,156.92 and 589.57

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Solution

The fourth proportional to 771.01, 1,156.92 and 589.57 is: 884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    771.01 : 1,156.92 = 589.57 : x
  2. Step 2: Convert to fraction form
    771.01/1,156.92 = 589.57/x
  3. Step 3: Cross multiply
    771.01x = 1,156.92 × 589.57
  4. Step 4: Simplify right side
    771.01x = 682,085.32
  5. Step 5: Solve for x
    x = 682,085.32/771.01
  6. Step 6: Final answer
    x = 884.66

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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.