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Finding the Third Proportional to 382,405 and 607,355

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Solution

The third proportional to 382,405 and 607,355 is: 964,631.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,405 : 607,355 = 607,355 : x
  2. Step 2: Convert to fraction form
    382,405/607,355 = 607,355/x
  3. Step 3: Cross multiply
    382,405x = 607,355 × 607,355
  4. Step 4: Simplify right side
    382,405x = 368,880,096,025
  5. Step 5: Solve for x
    x = 368,880,096,025/382,405
  6. Step 6: Final answer
    x = 964,631.99

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.