Home / 1,288,019.70-1,932,036.21-755,167.05

Finding the Fourth Proportional to 1,288,019.70, 1,932,036.21 and 755,167.05

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Solution

The fourth proportional to 1,288,019.70, 1,932,036.21 and 755,167.05 is: 1,132,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,019.70 : 1,932,036.21 = 755,167.05 : x
  2. Step 2: Convert to fraction form
    1,288,019.70/1,932,036.21 = 755,167.05/x
  3. Step 3: Cross multiply
    1,288,019.70x = 1,932,036.21 × 755,167.05
  4. Step 4: Simplify right side
    1,288,019.70x = 1,459,010,085,198.88
  5. Step 5: Solve for x
    x = 1,459,010,085,198.88/1,288,019.70
  6. Step 6: Final answer
    x = 1,132,754.48

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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.