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Finding the Fourth Proportional to 548,383.89, 756,755.55 and 303,377.70

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Solution

The fourth proportional to 548,383.89, 756,755.55 and 303,377.70 is: 418,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,383.89 : 756,755.55 = 303,377.70 : x
  2. Step 2: Convert to fraction form
    548,383.89/756,755.55 = 303,377.70/x
  3. Step 3: Cross multiply
    548,383.89x = 756,755.55 × 303,377.70
  4. Step 4: Simplify right side
    548,383.89x = 229,582,754,437.46
  5. Step 5: Solve for x
    x = 229,582,754,437.46/548,383.89
  6. Step 6: Final answer
    x = 418,653.36

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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.