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Finding the Fourth Proportional to 612.13, 914.33 and 576.59

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Solution

The fourth proportional to 612.13, 914.33 and 576.59 is: 861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.13 : 914.33 = 576.59 : x
  2. Step 2: Convert to fraction form
    612.13/914.33 = 576.59/x
  3. Step 3: Cross multiply
    612.13x = 914.33 × 576.59
  4. Step 4: Simplify right side
    612.13x = 527,194.07
  5. Step 5: Solve for x
    x = 527,194.07/612.13
  6. Step 6: Final answer
    x = 861.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.