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Finding the Third Proportional to 403,771.50 and 728,608.50

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Solution

The third proportional to 403,771.50 and 728,608.50 is: 1,314,779.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,771.50 : 728,608.50 = 728,608.50 : x
  2. Step 2: Convert to fraction form
    403,771.50/728,608.50 = 728,608.50/x
  3. Step 3: Cross multiply
    403,771.50x = 728,608.50 × 728,608.50
  4. Step 4: Simplify right side
    403,771.50x = 530,870,346,272.25
  5. Step 5: Solve for x
    x = 530,870,346,272.25/403,771.50
  6. Step 6: Final answer
    x = 1,314,779.14

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.