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Finding the Third Proportional to 508,845.50 and 691,054.50

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Solution

The third proportional to 508,845.50 and 691,054.50 is: 938,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,845.50 : 691,054.50 = 691,054.50 : x
  2. Step 2: Convert to fraction form
    508,845.50/691,054.50 = 691,054.50/x
  3. Step 3: Cross multiply
    508,845.50x = 691,054.50 × 691,054.50
  4. Step 4: Simplify right side
    508,845.50x = 477,556,321,970.25
  5. Step 5: Solve for x
    x = 477,556,321,970.25/508,845.50
  6. Step 6: Final answer
    x = 938,509.47

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.