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Finding the Third Proportional to 315,539.38 and 679,192.75

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Solution

The third proportional to 315,539.38 and 679,192.75 is: 1,461,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,539.38 : 679,192.75 = 679,192.75 : x
  2. Step 2: Convert to fraction form
    315,539.38/679,192.75 = 679,192.75/x
  3. Step 3: Cross multiply
    315,539.38x = 679,192.75 × 679,192.75
  4. Step 4: Simplify right side
    315,539.38x = 461,302,791,652.56
  5. Step 5: Solve for x
    x = 461,302,791,652.56/315,539.38
  6. Step 6: Final answer
    x = 1,461,950.01

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.