Home / 2,921,620.54-4,382,901.70-899,863.78

Finding the Fourth Proportional to 2,921,620.54, 4,382,901.70 and 899,863.78

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Solution

The fourth proportional to 2,921,620.54, 4,382,901.70 and 899,863.78 is: 1,349,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921,620.54 : 4,382,901.70 = 899,863.78 : x
  2. Step 2: Convert to fraction form
    2,921,620.54/4,382,901.70 = 899,863.78/x
  3. Step 3: Cross multiply
    2,921,620.54x = 4,382,901.70 × 899,863.78
  4. Step 4: Simplify right side
    2,921,620.54x = 3,944,014,491,130.43
  5. Step 5: Solve for x
    x = 3,944,014,491,130.43/2,921,620.54
  6. Step 6: Final answer
    x = 1,349,940.70

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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.