Home / 905,205.78-1,357,974.72-298,028.70

Finding the Fourth Proportional to 905,205.78, 1,357,974.72 and 298,028.70

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Solution

The fourth proportional to 905,205.78, 1,357,974.72 and 298,028.70 is: 447,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,205.78 : 1,357,974.72 = 298,028.70 : x
  2. Step 2: Convert to fraction form
    905,205.78/1,357,974.72 = 298,028.70/x
  3. Step 3: Cross multiply
    905,205.78x = 1,357,974.72 × 298,028.70
  4. Step 4: Simplify right side
    905,205.78x = 404,715,440,434.46
  5. Step 5: Solve for x
    x = 404,715,440,434.46/905,205.78
  6. Step 6: Final answer
    x = 447,097.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.