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Finding the Fourth Proportional to 548,101.52, 756,364.20 and 306,384.56

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Solution

The fourth proportional to 548,101.52, 756,364.20 and 306,384.56 is: 422,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,101.52 : 756,364.20 = 306,384.56 : x
  2. Step 2: Convert to fraction form
    548,101.52/756,364.20 = 306,384.56/x
  3. Step 3: Cross multiply
    548,101.52x = 756,364.20 × 306,384.56
  4. Step 4: Simplify right side
    548,101.52x = 231,738,312,616.75
  5. Step 5: Solve for x
    x = 231,738,312,616.75/548,101.52
  6. Step 6: Final answer
    x = 422,801.81

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1.5x scale

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.