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Finding the Third Proportional to 612,389 and 1,313,365

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Solution

The third proportional to 612,389 and 1,313,365 is: 2,816,718.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,389 : 1,313,365 = 1,313,365 : x
  2. Step 2: Convert to fraction form
    612,389/1,313,365 = 1,313,365/x
  3. Step 3: Cross multiply
    612,389x = 1,313,365 × 1,313,365
  4. Step 4: Simplify right side
    612,389x = 1,724,927,623,225
  5. Step 5: Solve for x
    x = 1,724,927,623,225/612,389
  6. Step 6: Final answer
    x = 2,816,718.82

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.