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Finding the Fourth Proportional to 547,849.14, 756,017.30 and 306,133.71

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Solution

The fourth proportional to 547,849.14, 756,017.30 and 306,133.71 is: 422,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,849.14 : 756,017.30 = 306,133.71 : x
  2. Step 2: Convert to fraction form
    547,849.14/756,017.30 = 306,133.71/x
  3. Step 3: Cross multiply
    547,849.14x = 756,017.30 × 306,133.71
  4. Step 4: Simplify right side
    547,849.14x = 231,442,379,342.51
  5. Step 5: Solve for x
    x = 231,442,379,342.51/547,849.14
  6. Step 6: Final answer
    x = 422,456.41

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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.