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Finding the Third Proportional to 721,854 and 1,009,165

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Solution

The third proportional to 721,854 and 1,009,165 is: 1,410,831.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,854 : 1,009,165 = 1,009,165 : x
  2. Step 2: Convert to fraction form
    721,854/1,009,165 = 1,009,165/x
  3. Step 3: Cross multiply
    721,854x = 1,009,165 × 1,009,165
  4. Step 4: Simplify right side
    721,854x = 1,018,413,997,225
  5. Step 5: Solve for x
    x = 1,018,413,997,225/721,854
  6. Step 6: Final answer
    x = 1,410,831.00

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.