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Finding the Third Proportional to 455,326.50 and 668,227.50

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Solution

The third proportional to 455,326.50 and 668,227.50 is: 980,676.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,326.50 : 668,227.50 = 668,227.50 : x
  2. Step 2: Convert to fraction form
    455,326.50/668,227.50 = 668,227.50/x
  3. Step 3: Cross multiply
    455,326.50x = 668,227.50 × 668,227.50
  4. Step 4: Simplify right side
    455,326.50x = 446,527,991,756.25
  5. Step 5: Solve for x
    x = 446,527,991,756.25/455,326.50
  6. Step 6: Final answer
    x = 980,676.49

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.