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Finding the Third Proportional to 340,656.75 and 528,972.75

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Solution

The third proportional to 340,656.75 and 528,972.75 is: 821,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,656.75 : 528,972.75 = 528,972.75 : x
  2. Step 2: Convert to fraction form
    340,656.75/528,972.75 = 528,972.75/x
  3. Step 3: Cross multiply
    340,656.75x = 528,972.75 × 528,972.75
  4. Step 4: Simplify right side
    340,656.75x = 279,812,170,242.56
  5. Step 5: Solve for x
    x = 279,812,170,242.56/340,656.75
  6. Step 6: Final answer
    x = 821,390.36

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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.