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Finding the Fourth Proportional to 753.98, 1,125.43 and 650.09

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Solution

The fourth proportional to 753.98, 1,125.43 and 650.09 is: 970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.98 : 1,125.43 = 650.09 : x
  2. Step 2: Convert to fraction form
    753.98/1,125.43 = 650.09/x
  3. Step 3: Cross multiply
    753.98x = 1,125.43 × 650.09
  4. Step 4: Simplify right side
    753.98x = 731,631.98
  5. Step 5: Solve for x
    x = 731,631.98/753.98
  6. Step 6: Final answer
    x = 970.37

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.