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Finding the Third Proportional to 608,621 and 890,395

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Solution

The third proportional to 608,621 and 890,395 is: 1,302,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,621 : 890,395 = 890,395 : x
  2. Step 2: Convert to fraction form
    608,621/890,395 = 890,395/x
  3. Step 3: Cross multiply
    608,621x = 890,395 × 890,395
  4. Step 4: Simplify right side
    608,621x = 792,803,256,025
  5. Step 5: Solve for x
    x = 792,803,256,025/608,621
  6. Step 6: Final answer
    x = 1,302,622.25

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.