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Finding the Fourth Proportional to 519,843.04, 779,607.60 and 270,388.96

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Solution

The fourth proportional to 519,843.04, 779,607.60 and 270,388.96 is: 405,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,843.04 : 779,607.60 = 270,388.96 : x
  2. Step 2: Convert to fraction form
    519,843.04/779,607.60 = 270,388.96/x
  3. Step 3: Cross multiply
    519,843.04x = 779,607.60 × 270,388.96
  4. Step 4: Simplify right side
    519,843.04x = 210,797,288,172.10
  5. Step 5: Solve for x
    x = 210,797,288,172.10/519,843.04
  6. Step 6: Final answer
    x = 405,501.80

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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.