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Finding the Third Proportional to 453,315 and 993,820

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Solution

The third proportional to 453,315 and 993,820 is: 2,178,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,315 : 993,820 = 993,820 : x
  2. Step 2: Convert to fraction form
    453,315/993,820 = 993,820/x
  3. Step 3: Cross multiply
    453,315x = 993,820 × 993,820
  4. Step 4: Simplify right side
    453,315x = 987,678,192,400
  5. Step 5: Solve for x
    x = 987,678,192,400/453,315
  6. Step 6: Final answer
    x = 2,178,790.01

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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.