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Finding the Third Proportional to 783.84 and 928.13

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Solution

The third proportional to 783.84 and 928.13 is: 1,098.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    783.84 : 928.13 = 928.13 : x
  2. Step 2: Convert to fraction form
    783.84/928.13 = 928.13/x
  3. Step 3: Cross multiply
    783.84x = 928.13 × 928.13
  4. Step 4: Simplify right side
    783.84x = 861,416.02
  5. Step 5: Solve for x
    x = 861,416.02/783.84
  6. Step 6: Final answer
    x = 1,098.96

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.