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Finding the Third Proportional to 455,422.50 and 668,368.13

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Solution

The third proportional to 455,422.50 and 668,368.13 is: 980,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,422.50 : 668,368.13 = 668,368.13 : x
  2. Step 2: Convert to fraction form
    455,422.50/668,368.13 = 668,368.13/x
  3. Step 3: Cross multiply
    455,422.50x = 668,368.13 × 668,368.13
  4. Step 4: Simplify right side
    455,422.50x = 446,715,950,516.02
  5. Step 5: Solve for x
    x = 446,715,950,516.02/455,422.50
  6. Step 6: Final answer
    x = 980,882.48

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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.