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Finding the Fourth Proportional to 863.35, 1,191.84 and 532.06

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Solution

The fourth proportional to 863.35, 1,191.84 and 532.06 is: 734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    863.35 : 1,191.84 = 532.06 : x
  2. Step 2: Convert to fraction form
    863.35/1,191.84 = 532.06/x
  3. Step 3: Cross multiply
    863.35x = 1,191.84 × 532.06
  4. Step 4: Simplify right side
    863.35x = 634,130.39
  5. Step 5: Solve for x
    x = 634,130.39/863.35
  6. Step 6: Final answer
    x = 734.50

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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.