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Finding the Third Proportional to 691,821 and 1,488,334.50

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Solution

The third proportional to 691,821 and 1,488,334.50 is: 3,201,897.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,821 : 1,488,334.50 = 1,488,334.50 : x
  2. Step 2: Convert to fraction form
    691,821/1,488,334.50 = 1,488,334.50/x
  3. Step 3: Cross multiply
    691,821x = 1,488,334.50 × 1,488,334.50
  4. Step 4: Simplify right side
    691,821x = 2,215,139,583,890.25
  5. Step 5: Solve for x
    x = 2,215,139,583,890.25/691,821
  6. Step 6: Final answer
    x = 3,201,897.00

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.