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Finding the Fourth Proportional to 548,087.98, 756,348.08 and 306,398.97

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Solution

The fourth proportional to 548,087.98, 756,348.08 and 306,398.97 is: 422,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,087.98 : 756,348.08 = 306,398.97 : x
  2. Step 2: Convert to fraction form
    548,087.98/756,348.08 = 306,398.97/x
  3. Step 3: Cross multiply
    548,087.98x = 756,348.08 × 306,398.97
  4. Step 4: Simplify right side
    548,087.98x = 231,744,272,673.48
  5. Step 5: Solve for x
    x = 231,744,272,673.48/548,087.98
  6. Step 6: Final answer
    x = 422,823.13

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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.