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Finding the Third Proportional to 669,578.91 and 1,488,139.59

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Solution

The third proportional to 669,578.91 and 1,488,139.59 is: 3,307,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,578.91 : 1,488,139.59 = 1,488,139.59 : x
  2. Step 2: Convert to fraction form
    669,578.91/1,488,139.59 = 1,488,139.59/x
  3. Step 3: Cross multiply
    669,578.91x = 1,488,139.59 × 1,488,139.59
  4. Step 4: Simplify right side
    669,578.91x = 2,214,559,450,486.42
  5. Step 5: Solve for x
    x = 2,214,559,450,486.42/669,578.91
  6. Step 6: Final answer
    x = 3,307,391.30

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.