Home / 806,443.10-1,112,891.41-438,922.87

Finding the Fourth Proportional to 806,443.10, 1,112,891.41 and 438,922.87

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Solution

The fourth proportional to 806,443.10, 1,112,891.41 and 438,922.87 is: 605,713.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,443.10 : 1,112,891.41 = 438,922.87 : x
  2. Step 2: Convert to fraction form
    806,443.10/1,112,891.41 = 438,922.87/x
  3. Step 3: Cross multiply
    806,443.10x = 1,112,891.41 × 438,922.87
  4. Step 4: Simplify right side
    806,443.10x = 488,473,491,624.19
  5. Step 5: Solve for x
    x = 488,473,491,624.19/806,443.10
  6. Step 6: Final answer
    x = 605,713.53

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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.