Home / 1,930,379.85-2,664,243.09-1,071,216.90

Finding the Fourth Proportional to 1,930,379.85, 2,664,243.09 and 1,071,216.90

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Solution

The fourth proportional to 1,930,379.85, 2,664,243.09 and 1,071,216.90 is: 1,478,456.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930,379.85 : 2,664,243.09 = 1,071,216.90 : x
  2. Step 2: Convert to fraction form
    1,930,379.85/2,664,243.09 = 1,071,216.90/x
  3. Step 3: Cross multiply
    1,930,379.85x = 2,664,243.09 × 1,071,216.90
  4. Step 4: Simplify right side
    1,930,379.85x = 2,853,982,223,716.22
  5. Step 5: Solve for x
    x = 2,853,982,223,716.22/1,930,379.85
  6. Step 6: Final answer
    x = 1,478,456.29

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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.