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Finding the Third Proportional to 289,623 and 448,445

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Solution

The third proportional to 289,623 and 448,445 is: 694,361.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,623 : 448,445 = 448,445 : x
  2. Step 2: Convert to fraction form
    289,623/448,445 = 448,445/x
  3. Step 3: Cross multiply
    289,623x = 448,445 × 448,445
  4. Step 4: Simplify right side
    289,623x = 201,102,918,025
  5. Step 5: Solve for x
    x = 201,102,918,025/289,623
  6. Step 6: Final answer
    x = 694,361.01

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.