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Finding the Third Proportional to 608,619 and 890,392.50

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Solution

The third proportional to 608,619 and 890,392.50 is: 1,302,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,619 : 890,392.50 = 890,392.50 : x
  2. Step 2: Convert to fraction form
    608,619/890,392.50 = 890,392.50/x
  3. Step 3: Cross multiply
    608,619x = 890,392.50 × 890,392.50
  4. Step 4: Simplify right side
    608,619x = 792,798,804,056.25
  5. Step 5: Solve for x
    x = 792,798,804,056.25/608,619
  6. Step 6: Final answer
    x = 1,302,619.22

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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.