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Finding the Fourth Proportional to 834.61, 1,151.54 and 568.57

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Solution

The fourth proportional to 834.61, 1,151.54 and 568.57 is: 784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.61 : 1,151.54 = 568.57 : x
  2. Step 2: Convert to fraction form
    834.61/1,151.54 = 568.57/x
  3. Step 3: Cross multiply
    834.61x = 1,151.54 × 568.57
  4. Step 4: Simplify right side
    834.61x = 654,731.10
  5. Step 5: Solve for x
    x = 654,731.10/834.61
  6. Step 6: Final answer
    x = 784.48

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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.