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Finding the Fourth Proportional to 1,060.73, 1,463.87 and 618.47

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Solution

The fourth proportional to 1,060.73, 1,463.87 and 618.47 is: 853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.73 : 1,463.87 = 618.47 : x
  2. Step 2: Convert to fraction form
    1,060.73/1,463.87 = 618.47/x
  3. Step 3: Cross multiply
    1,060.73x = 1,463.87 × 618.47
  4. Step 4: Simplify right side
    1,060.73x = 905,359.40
  5. Step 5: Solve for x
    x = 905,359.40/1,060.73
  6. Step 6: Final answer
    x = 853.53

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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.