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Finding the Fourth Proportional to 1,301.46, 1,795.99 and 711.98

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Solution

The fourth proportional to 1,301.46, 1,795.99 and 711.98 is: 982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.46 : 1,795.99 = 711.98 : x
  2. Step 2: Convert to fraction form
    1,301.46/1,795.99 = 711.98/x
  3. Step 3: Cross multiply
    1,301.46x = 1,795.99 × 711.98
  4. Step 4: Simplify right side
    1,301.46x = 1,278,708.96
  5. Step 5: Solve for x
    x = 1,278,708.96/1,301.46
  6. Step 6: Final answer
    x = 982.52

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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.