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Finding the Fourth Proportional to 977.14, 1,462.84 and 610.82

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Solution

The fourth proportional to 977.14, 1,462.84 and 610.82 is: 914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    977.14 : 1,462.84 = 610.82 : x
  2. Step 2: Convert to fraction form
    977.14/1,462.84 = 610.82/x
  3. Step 3: Cross multiply
    977.14x = 1,462.84 × 610.82
  4. Step 4: Simplify right side
    977.14x = 893,531.93
  5. Step 5: Solve for x
    x = 893,531.93/977.14
  6. Step 6: Final answer
    x = 914.44

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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.