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Finding the Fourth Proportional to 548,450.66, 756,900.25 and 306,755.57

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Solution

The fourth proportional to 548,450.66, 756,900.25 and 306,755.57 is: 423,344.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,450.66 : 756,900.25 = 306,755.57 : x
  2. Step 2: Convert to fraction form
    548,450.66/756,900.25 = 306,755.57/x
  3. Step 3: Cross multiply
    548,450.66x = 756,900.25 × 306,755.57
  4. Step 4: Simplify right side
    548,450.66x = 232,183,368,747.25
  5. Step 5: Solve for x
    x = 232,183,368,747.25/548,450.66
  6. Step 6: Final answer
    x = 423,344.13

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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.