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Finding the Third Proportional to 393,044 and 842,158

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Solution

The third proportional to 393,044 and 842,158 is: 1,804,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,044 : 842,158 = 842,158 : x
  2. Step 2: Convert to fraction form
    393,044/842,158 = 842,158/x
  3. Step 3: Cross multiply
    393,044x = 842,158 × 842,158
  4. Step 4: Simplify right side
    393,044x = 709,230,096,964
  5. Step 5: Solve for x
    x = 709,230,096,964/393,044
  6. Step 6: Final answer
    x = 1,804,454.71

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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.