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Finding the Third Proportional to 453,403 and 992,990

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Solution

The third proportional to 453,403 and 992,990 is: 2,174,730.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,403 : 992,990 = 992,990 : x
  2. Step 2: Convert to fraction form
    453,403/992,990 = 992,990/x
  3. Step 3: Cross multiply
    453,403x = 992,990 × 992,990
  4. Step 4: Simplify right side
    453,403x = 986,029,140,100
  5. Step 5: Solve for x
    x = 986,029,140,100/453,403
  6. Step 6: Final answer
    x = 2,174,730.07

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.