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Finding the Third Proportional to 782,430.75 and 1,668,208.50

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Solution

The third proportional to 782,430.75 and 1,668,208.50 is: 3,556,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,430.75 : 1,668,208.50 = 1,668,208.50 : x
  2. Step 2: Convert to fraction form
    782,430.75/1,668,208.50 = 1,668,208.50/x
  3. Step 3: Cross multiply
    782,430.75x = 1,668,208.50 × 1,668,208.50
  4. Step 4: Simplify right side
    782,430.75x = 2,782,919,599,472.25
  5. Step 5: Solve for x
    x = 2,782,919,599,472.25/782,430.75
  6. Step 6: Final answer
    x = 3,556,761.54

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.