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Finding the Third Proportional to 1,399,452.19 and 2,939,920.31

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Solution

The third proportional to 1,399,452.19 and 2,939,920.31 is: 6,176,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,452.19 : 2,939,920.31 = 2,939,920.31 : x
  2. Step 2: Convert to fraction form
    1,399,452.19/2,939,920.31 = 2,939,920.31/x
  3. Step 3: Cross multiply
    1,399,452.19x = 2,939,920.31 × 2,939,920.31
  4. Step 4: Simplify right side
    1,399,452.19x = 8,643,131,443,850.10
  5. Step 5: Solve for x
    x = 8,643,131,443,850.10/1,399,452.19
  6. Step 6: Final answer
    x = 6,176,081.98

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.