Home / 1,288,015.32-1,932,029.64-755,162.68

Finding the Fourth Proportional to 1,288,015.32, 1,932,029.64 and 755,162.68

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Solution

The fourth proportional to 1,288,015.32, 1,932,029.64 and 755,162.68 is: 1,132,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,015.32 : 1,932,029.64 = 755,162.68 : x
  2. Step 2: Convert to fraction form
    1,288,015.32/1,932,029.64 = 755,162.68/x
  3. Step 3: Cross multiply
    1,288,015.32x = 1,932,029.64 × 755,162.68
  4. Step 4: Simplify right side
    1,288,015.32x = 1,458,996,680,781.84
  5. Step 5: Solve for x
    x = 1,458,996,680,781.84/1,288,015.32
  6. Step 6: Final answer
    x = 1,132,747.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.