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Finding the Third Proportional to 637,243 and 1,330,255

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Solution

The third proportional to 637,243 and 1,330,255 is: 2,776,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,243 : 1,330,255 = 1,330,255 : x
  2. Step 2: Convert to fraction form
    637,243/1,330,255 = 1,330,255/x
  3. Step 3: Cross multiply
    637,243x = 1,330,255 × 1,330,255
  4. Step 4: Simplify right side
    637,243x = 1,769,578,365,025
  5. Step 5: Solve for x
    x = 1,769,578,365,025/637,243
  6. Step 6: Final answer
    x = 2,776,928.68

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.