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Finding the Fourth Proportional to 887.84, 1,332.72 and 563.48

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Solution

The fourth proportional to 887.84, 1,332.72 and 563.48 is: 845.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.84 : 1,332.72 = 563.48 : x
  2. Step 2: Convert to fraction form
    887.84/1,332.72 = 563.48/x
  3. Step 3: Cross multiply
    887.84x = 1,332.72 × 563.48
  4. Step 4: Simplify right side
    887.84x = 750,961.07
  5. Step 5: Solve for x
    x = 750,961.07/887.84
  6. Step 6: Final answer
    x = 845.83

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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.