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Finding the Fourth Proportional to 548,553.56, 757,073.94 and 306,849.56

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Solution

The fourth proportional to 548,553.56, 757,073.94 and 306,849.56 is: 423,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,553.56 : 757,073.94 = 306,849.56 : x
  2. Step 2: Convert to fraction form
    548,553.56/757,073.94 = 306,849.56/x
  3. Step 3: Cross multiply
    548,553.56x = 757,073.94 × 306,849.56
  4. Step 4: Simplify right side
    548,553.56x = 232,307,805,376.47
  5. Step 5: Solve for x
    x = 232,307,805,376.47/548,553.56
  6. Step 6: Final answer
    x = 423,491.56

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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.