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Finding the Fourth Proportional to 818.56, 1,130.40 and 701.44

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Solution

The fourth proportional to 818.56, 1,130.40 and 701.44 is: 968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    818.56 : 1,130.40 = 701.44 : x
  2. Step 2: Convert to fraction form
    818.56/1,130.40 = 701.44/x
  3. Step 3: Cross multiply
    818.56x = 1,130.40 × 701.44
  4. Step 4: Simplify right side
    818.56x = 792,907.78
  5. Step 5: Solve for x
    x = 792,907.78/818.56
  6. Step 6: Final answer
    x = 968.66

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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.