Home / 547,932.74-756,139.66-306,219.02

Finding the Fourth Proportional to 547,932.74, 756,139.66 and 306,219.02

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Solution

The fourth proportional to 547,932.74, 756,139.66 and 306,219.02 is: 422,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,932.74 : 756,139.66 = 306,219.02 : x
  2. Step 2: Convert to fraction form
    547,932.74/756,139.66 = 306,219.02/x
  3. Step 3: Cross multiply
    547,932.74x = 756,139.66 × 306,219.02
  4. Step 4: Simplify right side
    547,932.74x = 231,544,341,122.09
  5. Step 5: Solve for x
    x = 231,544,341,122.09/547,932.74
  6. Step 6: Final answer
    x = 422,578.04

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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.