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Finding the Third Proportional to 403,334 and 509,718

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Solution

The third proportional to 403,334 and 509,718 is: 644,162.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,334 : 509,718 = 509,718 : x
  2. Step 2: Convert to fraction form
    403,334/509,718 = 509,718/x
  3. Step 3: Cross multiply
    403,334x = 509,718 × 509,718
  4. Step 4: Simplify right side
    403,334x = 259,812,439,524
  5. Step 5: Solve for x
    x = 259,812,439,524/403,334
  6. Step 6: Final answer
    x = 644,162.01

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.