Home / 1,211,959.32-1,672,428.60-668,067

Finding the Fourth Proportional to 1,211,959.32, 1,672,428.60 and 668,067

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Solution

The fourth proportional to 1,211,959.32, 1,672,428.60 and 668,067 is: 921,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,959.32 : 1,672,428.60 = 668,067 : x
  2. Step 2: Convert to fraction form
    1,211,959.32/1,672,428.60 = 668,067/x
  3. Step 3: Cross multiply
    1,211,959.32x = 1,672,428.60 × 668,067
  4. Step 4: Simplify right side
    1,211,959.32x = 1,117,294,357,516.20
  5. Step 5: Solve for x
    x = 1,117,294,357,516.20/1,211,959.32
  6. Step 6: Final answer
    x = 921,890.97

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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.