Home / 452,579.45-678,869.16-115,620.84

Finding the Fourth Proportional to 452,579.45, 678,869.16 and 115,620.84

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Solution

The fourth proportional to 452,579.45, 678,869.16 and 115,620.84 is: 173,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,579.45 : 678,869.16 = 115,620.84 : x
  2. Step 2: Convert to fraction form
    452,579.45/678,869.16 = 115,620.84/x
  3. Step 3: Cross multiply
    452,579.45x = 678,869.16 × 115,620.84
  4. Step 4: Simplify right side
    452,579.45x = 78,491,422,529.29
  5. Step 5: Solve for x
    x = 78,491,422,529.29/452,579.45
  6. Step 6: Final answer
    x = 173,431.26

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Similar ratio
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1.5x scale

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.