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Finding the Third Proportional to 358,122 and 772,281

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Solution

The third proportional to 358,122 and 772,281 is: 1,665,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,122 : 772,281 = 772,281 : x
  2. Step 2: Convert to fraction form
    358,122/772,281 = 772,281/x
  3. Step 3: Cross multiply
    358,122x = 772,281 × 772,281
  4. Step 4: Simplify right side
    358,122x = 596,417,942,961
  5. Step 5: Solve for x
    x = 596,417,942,961/358,122
  6. Step 6: Final answer
    x = 1,665,404.37

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.