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Finding the Third Proportional to 455,365.13 and 980,812.13

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Solution

The third proportional to 455,365.13 and 980,812.13 is: 2,112,573.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,365.13 : 980,812.13 = 980,812.13 : x
  2. Step 2: Convert to fraction form
    455,365.13/980,812.13 = 980,812.13/x
  3. Step 3: Cross multiply
    455,365.13x = 980,812.13 × 980,812.13
  4. Step 4: Simplify right side
    455,365.13x = 961,992,424,547.02
  5. Step 5: Solve for x
    x = 961,992,424,547.02/455,365.13
  6. Step 6: Final answer
    x = 2,112,573.78

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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.