Home / 1,078,955.80-1,617,137.70-447,544.60

Finding the Fourth Proportional to 1,078,955.80, 1,617,137.70 and 447,544.60

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Solution

The fourth proportional to 1,078,955.80, 1,617,137.70 and 447,544.60 is: 670,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,955.80 : 1,617,137.70 = 447,544.60 : x
  2. Step 2: Convert to fraction form
    1,078,955.80/1,617,137.70 = 447,544.60/x
  3. Step 3: Cross multiply
    1,078,955.80x = 1,617,137.70 × 447,544.60
  4. Step 4: Simplify right side
    1,078,955.80x = 723,741,245,091.42
  5. Step 5: Solve for x
    x = 723,741,245,091.42/1,078,955.80
  6. Step 6: Final answer
    x = 670,779.33

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Double scale
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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.