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Finding the Fourth Proportional to 1,060.20, 1,462.62 and 729.06

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Solution

The fourth proportional to 1,060.20, 1,462.62 and 729.06 is: 1,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.20 : 1,462.62 = 729.06 : x
  2. Step 2: Convert to fraction form
    1,060.20/1,462.62 = 729.06/x
  3. Step 3: Cross multiply
    1,060.20x = 1,462.62 × 729.06
  4. Step 4: Simplify right side
    1,060.20x = 1,066,337.74
  5. Step 5: Solve for x
    x = 1,066,337.74/1,060.20
  6. Step 6: Final answer
    x = 1,005.79

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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.