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Finding the Third Proportional to 372,944 and 816,421

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Solution

The third proportional to 372,944 and 816,421 is: 1,787,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,944 : 816,421 = 816,421 : x
  2. Step 2: Convert to fraction form
    372,944/816,421 = 816,421/x
  3. Step 3: Cross multiply
    372,944x = 816,421 × 816,421
  4. Step 4: Simplify right side
    372,944x = 666,543,249,241
  5. Step 5: Solve for x
    x = 666,543,249,241/372,944
  6. Step 6: Final answer
    x = 1,787,247.55

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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.