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Finding the Fourth Proportional to 611.33, 914.94 and 508.82

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Solution

The fourth proportional to 611.33, 914.94 and 508.82 is: 761.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.33 : 914.94 = 508.82 : x
  2. Step 2: Convert to fraction form
    611.33/914.94 = 508.82/x
  3. Step 3: Cross multiply
    611.33x = 914.94 × 508.82
  4. Step 4: Simplify right side
    611.33x = 465,535.20
  5. Step 5: Solve for x
    x = 465,535.20/611.33
  6. Step 6: Final answer
    x = 761.52

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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.