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Finding the Fourth Proportional to 545,650.53, 753,020.97 and 303,933.21

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Solution

The fourth proportional to 545,650.53, 753,020.97 and 303,933.21 is: 419,440.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,650.53 : 753,020.97 = 303,933.21 : x
  2. Step 2: Convert to fraction form
    545,650.53/753,020.97 = 303,933.21/x
  3. Step 3: Cross multiply
    545,650.53x = 753,020.97 × 303,933.21
  4. Step 4: Simplify right side
    545,650.53x = 228,868,081,732.13
  5. Step 5: Solve for x
    x = 228,868,081,732.13/545,650.53
  6. Step 6: Final answer
    x = 419,440.77

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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.