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Finding the Third Proportional to 455,507 and 996,820

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Solution

The third proportional to 455,507 and 996,820 is: 2,181,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,507 : 996,820 = 996,820 : x
  2. Step 2: Convert to fraction form
    455,507/996,820 = 996,820/x
  3. Step 3: Cross multiply
    455,507x = 996,820 × 996,820
  4. Step 4: Simplify right side
    455,507x = 993,650,112,400
  5. Step 5: Solve for x
    x = 993,650,112,400/455,507
  6. Step 6: Final answer
    x = 2,181,415.68

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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.