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Finding the Fourth Proportional to 519,975, 779,863.86 and 253,467.48

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Solution

The fourth proportional to 519,975, 779,863.86 and 253,467.48 is: 380,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,975 : 779,863.86 = 253,467.48 : x
  2. Step 2: Convert to fraction form
    519,975/779,863.86 = 253,467.48/x
  3. Step 3: Cross multiply
    519,975x = 779,863.86 × 253,467.48
  4. Step 4: Simplify right side
    519,975x = 197,670,127,337.27
  5. Step 5: Solve for x
    x = 197,670,127,337.27/519,975
  6. Step 6: Final answer
    x = 380,153.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.