Home / 1,211,672.52-1,672,039.85-667,806.66

Finding the Fourth Proportional to 1,211,672.52, 1,672,039.85 and 667,806.66

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Solution

The fourth proportional to 1,211,672.52, 1,672,039.85 and 667,806.66 is: 921,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,672.52 : 1,672,039.85 = 667,806.66 : x
  2. Step 2: Convert to fraction form
    1,211,672.52/1,672,039.85 = 667,806.66/x
  3. Step 3: Cross multiply
    1,211,672.52x = 1,672,039.85 × 667,806.66
  4. Step 4: Simplify right side
    1,211,672.52x = 1,116,599,344,276.37
  5. Step 5: Solve for x
    x = 1,116,599,344,276.37/1,211,672.52
  6. Step 6: Final answer
    x = 921,535.58

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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.