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Finding the Third Proportional to 320,485.50 and 700,519.50

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Solution

The third proportional to 320,485.50 and 700,519.50 is: 1,531,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,485.50 : 700,519.50 = 700,519.50 : x
  2. Step 2: Convert to fraction form
    320,485.50/700,519.50 = 700,519.50/x
  3. Step 3: Cross multiply
    320,485.50x = 700,519.50 × 700,519.50
  4. Step 4: Simplify right side
    320,485.50x = 490,727,569,880.25
  5. Step 5: Solve for x
    x = 490,727,569,880.25/320,485.50
  6. Step 6: Final answer
    x = 1,531,200.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.