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Finding the Third Proportional to 407,244 and 842,424

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Solution

The third proportional to 407,244 and 842,424 is: 1,742,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,244 : 842,424 = 842,424 : x
  2. Step 2: Convert to fraction form
    407,244/842,424 = 842,424/x
  3. Step 3: Cross multiply
    407,244x = 842,424 × 842,424
  4. Step 4: Simplify right side
    407,244x = 709,678,195,776
  5. Step 5: Solve for x
    x = 709,678,195,776/407,244
  6. Step 6: Final answer
    x = 1,742,636.35

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.