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Finding the Fourth Proportional to 887.06, 1,223.28 and 532.92

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Solution

The fourth proportional to 887.06, 1,223.28 and 532.92 is: 734.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.06 : 1,223.28 = 532.92 : x
  2. Step 2: Convert to fraction form
    887.06/1,223.28 = 532.92/x
  3. Step 3: Cross multiply
    887.06x = 1,223.28 × 532.92
  4. Step 4: Simplify right side
    887.06x = 651,910.38
  5. Step 5: Solve for x
    x = 651,910.38/887.06
  6. Step 6: Final answer
    x = 734.91

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Double scale
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1.5x scale

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.