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Finding the Fourth Proportional to 746.85, 1,119.18 and 585.39

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Solution

The fourth proportional to 746.85, 1,119.18 and 585.39 is: 877.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.85 : 1,119.18 = 585.39 : x
  2. Step 2: Convert to fraction form
    746.85/1,119.18 = 585.39/x
  3. Step 3: Cross multiply
    746.85x = 1,119.18 × 585.39
  4. Step 4: Simplify right side
    746.85x = 655,156.78
  5. Step 5: Solve for x
    x = 655,156.78/746.85
  6. Step 6: Final answer
    x = 877.23

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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.