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Finding the Fourth Proportional to 691.66, 1,035.09 and 566.82

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Solution

The fourth proportional to 691.66, 1,035.09 and 566.82 is: 848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.66 : 1,035.09 = 566.82 : x
  2. Step 2: Convert to fraction form
    691.66/1,035.09 = 566.82/x
  3. Step 3: Cross multiply
    691.66x = 1,035.09 × 566.82
  4. Step 4: Simplify right side
    691.66x = 586,709.71
  5. Step 5: Solve for x
    x = 586,709.71/691.66
  6. Step 6: Final answer
    x = 848.26

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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.