Home / 1,211,601.27-1,672,257.87-721,857.69

Finding the Fourth Proportional to 1,211,601.27, 1,672,257.87 and 721,857.69

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Solution

The fourth proportional to 1,211,601.27, 1,672,257.87 and 721,857.69 is: 996,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,601.27 : 1,672,257.87 = 721,857.69 : x
  2. Step 2: Convert to fraction form
    1,211,601.27/1,672,257.87 = 721,857.69/x
  3. Step 3: Cross multiply
    1,211,601.27x = 1,672,257.87 × 721,857.69
  4. Step 4: Simplify right side
    1,211,601.27x = 1,207,132,197,263.52
  5. Step 5: Solve for x
    x = 1,207,132,197,263.52/1,211,601.27
  6. Step 6: Final answer
    x = 996,311.43

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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.