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Finding the Fourth Proportional to 508,879.95, 763,203.30 and 303,772.56

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Solution

The fourth proportional to 508,879.95, 763,203.30 and 303,772.56 is: 455,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,879.95 : 763,203.30 = 303,772.56 : x
  2. Step 2: Convert to fraction form
    508,879.95/763,203.30 = 303,772.56/x
  3. Step 3: Cross multiply
    508,879.95x = 763,203.30 × 303,772.56
  4. Step 4: Simplify right side
    508,879.95x = 231,840,220,241.45
  5. Step 5: Solve for x
    x = 231,840,220,241.45/508,879.95
  6. Step 6: Final answer
    x = 455,589.22

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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.