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Finding the Third Proportional to 431,340.75 and 907,299

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Solution

The third proportional to 431,340.75 and 907,299 is: 1,908,448.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,340.75 : 907,299 = 907,299 : x
  2. Step 2: Convert to fraction form
    431,340.75/907,299 = 907,299/x
  3. Step 3: Cross multiply
    431,340.75x = 907,299 × 907,299
  4. Step 4: Simplify right side
    431,340.75x = 823,191,475,401
  5. Step 5: Solve for x
    x = 823,191,475,401/431,340.75
  6. Step 6: Final answer
    x = 1,908,448.19

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.