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Finding the Fourth Proportional to 691.01, 952.98 and 550.07

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Solution

The fourth proportional to 691.01, 952.98 and 550.07 is: 758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.01 : 952.98 = 550.07 : x
  2. Step 2: Convert to fraction form
    691.01/952.98 = 550.07/x
  3. Step 3: Cross multiply
    691.01x = 952.98 × 550.07
  4. Step 4: Simplify right side
    691.01x = 524,200.94
  5. Step 5: Solve for x
    x = 524,200.94/691.01
  6. Step 6: Final answer
    x = 758.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.