Home / 1,288,784.97-1,778,325.55-744,815.71

Finding the Fourth Proportional to 1,288,784.97, 1,778,325.55 and 744,815.71

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Solution

The fourth proportional to 1,288,784.97, 1,778,325.55 and 744,815.71 is: 1,027,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,784.97 : 1,778,325.55 = 744,815.71 : x
  2. Step 2: Convert to fraction form
    1,288,784.97/1,778,325.55 = 744,815.71/x
  3. Step 3: Cross multiply
    1,288,784.97x = 1,778,325.55 × 744,815.71
  4. Step 4: Simplify right side
    1,288,784.97x = 1,324,524,807,134.39
  5. Step 5: Solve for x
    x = 1,324,524,807,134.39/1,288,784.97
  6. Step 6: Final answer
    x = 1,027,731.42

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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.