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Finding the Fourth Proportional to 1,059.86, 1,462.64 and 611.84

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Solution

The fourth proportional to 1,059.86, 1,462.64 and 611.84 is: 844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.86 : 1,462.64 = 611.84 : x
  2. Step 2: Convert to fraction form
    1,059.86/1,462.64 = 611.84/x
  3. Step 3: Cross multiply
    1,059.86x = 1,462.64 × 611.84
  4. Step 4: Simplify right side
    1,059.86x = 894,891.29
  5. Step 5: Solve for x
    x = 894,891.29/1,059.86
  6. Step 6: Final answer
    x = 844.35

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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.