Home / 1,326,237.28-1,987,939.50-756,391.56

Finding the Fourth Proportional to 1,326,237.28, 1,987,939.50 and 756,391.56

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Solution

The fourth proportional to 1,326,237.28, 1,987,939.50 and 756,391.56 is: 1,133,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,237.28 : 1,987,939.50 = 756,391.56 : x
  2. Step 2: Convert to fraction form
    1,326,237.28/1,987,939.50 = 756,391.56/x
  3. Step 3: Cross multiply
    1,326,237.28x = 1,987,939.50 × 756,391.56
  4. Step 4: Simplify right side
    1,326,237.28x = 1,503,660,659,590.62
  5. Step 5: Solve for x
    x = 1,503,660,659,590.62/1,326,237.28
  6. Step 6: Final answer
    x = 1,133,779.51

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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.