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Finding the Fourth Proportional to 873.43, 1,206.03 and 676.60

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Solution

The fourth proportional to 873.43, 1,206.03 and 676.60 is: 934.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.43 : 1,206.03 = 676.60 : x
  2. Step 2: Convert to fraction form
    873.43/1,206.03 = 676.60/x
  3. Step 3: Cross multiply
    873.43x = 1,206.03 × 676.60
  4. Step 4: Simplify right side
    873.43x = 815,999.90
  5. Step 5: Solve for x
    x = 815,999.90/873.43
  6. Step 6: Final answer
    x = 934.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.