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Finding the Fourth Proportional to 519,831.04, 779,118.24 and 253,192

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Solution

The fourth proportional to 519,831.04, 779,118.24 and 253,192 is: 379,481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,831.04 : 779,118.24 = 253,192 : x
  2. Step 2: Convert to fraction form
    519,831.04/779,118.24 = 253,192/x
  3. Step 3: Cross multiply
    519,831.04x = 779,118.24 × 253,192
  4. Step 4: Simplify right side
    519,831.04x = 197,266,505,422.08
  5. Step 5: Solve for x
    x = 197,266,505,422.08/519,831.04
  6. Step 6: Final answer
    x = 379,481.97

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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.