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Finding the Fourth Proportional to 521,404.86, 719,553.87 and 295,045.50

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Solution

The fourth proportional to 521,404.86, 719,553.87 and 295,045.50 is: 407,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,404.86 : 719,553.87 = 295,045.50 : x
  2. Step 2: Convert to fraction form
    521,404.86/719,553.87 = 295,045.50/x
  3. Step 3: Cross multiply
    521,404.86x = 719,553.87 × 295,045.50
  4. Step 4: Simplify right side
    521,404.86x = 212,301,131,351.09
  5. Step 5: Solve for x
    x = 212,301,131,351.09/521,404.86
  6. Step 6: Final answer
    x = 407,171.37

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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.