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Finding the Fourth Proportional to 883.61, 1,325.42 and 608.87

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Solution

The fourth proportional to 883.61, 1,325.42 and 608.87 is: 913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.61 : 1,325.42 = 608.87 : x
  2. Step 2: Convert to fraction form
    883.61/1,325.42 = 608.87/x
  3. Step 3: Cross multiply
    883.61x = 1,325.42 × 608.87
  4. Step 4: Simplify right side
    883.61x = 806,998.80
  5. Step 5: Solve for x
    x = 806,998.80/883.61
  6. Step 6: Final answer
    x = 913.30

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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.