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Finding the Fourth Proportional to 478,797.43, 660,745.05 and 263,945.17

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Solution

The fourth proportional to 478,797.43, 660,745.05 and 263,945.17 is: 364,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,797.43 : 660,745.05 = 263,945.17 : x
  2. Step 2: Convert to fraction form
    478,797.43/660,745.05 = 263,945.17/x
  3. Step 3: Cross multiply
    478,797.43x = 660,745.05 × 263,945.17
  4. Step 4: Simplify right side
    478,797.43x = 174,400,464,548.91
  5. Step 5: Solve for x
    x = 174,400,464,548.91/478,797.43
  6. Step 6: Final answer
    x = 364,246.87

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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.