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Finding the Fourth Proportional to 547,849.27, 756,017.48 and 306,133.82

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Solution

The fourth proportional to 547,849.27, 756,017.48 and 306,133.82 is: 422,456.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,849.27 : 756,017.48 = 306,133.82 : x
  2. Step 2: Convert to fraction form
    547,849.27/756,017.48 = 306,133.82/x
  3. Step 3: Cross multiply
    547,849.27x = 756,017.48 × 306,133.82
  4. Step 4: Simplify right side
    547,849.27x = 231,442,519,139.17
  5. Step 5: Solve for x
    x = 231,442,519,139.17/547,849.27
  6. Step 6: Final answer
    x = 422,456.57

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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.