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Finding the Fourth Proportional to 521,550.78, 719,657.82 and 303,795.29

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Solution

The fourth proportional to 521,550.78, 719,657.82 and 303,795.29 is: 419,189.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,550.78 : 719,657.82 = 303,795.29 : x
  2. Step 2: Convert to fraction form
    521,550.78/719,657.82 = 303,795.29/x
  3. Step 3: Cross multiply
    521,550.78x = 719,657.82 × 303,795.29
  4. Step 4: Simplify right side
    521,550.78x = 218,628,652,529.38
  5. Step 5: Solve for x
    x = 218,628,652,529.38/521,550.78
  6. Step 6: Final answer
    x = 419,189.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.