Home / 979,780.25-1,469,842.61-447,355.10

Finding the Fourth Proportional to 979,780.25, 1,469,842.61 and 447,355.10

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Solution

The fourth proportional to 979,780.25, 1,469,842.61 and 447,355.10 is: 671,111.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,780.25 : 1,469,842.61 = 447,355.10 : x
  2. Step 2: Convert to fraction form
    979,780.25/1,469,842.61 = 447,355.10/x
  3. Step 3: Cross multiply
    979,780.25x = 1,469,842.61 × 447,355.10
  4. Step 4: Simplify right side
    979,780.25x = 657,541,589,218.64
  5. Step 5: Solve for x
    x = 657,541,589,218.64/979,780.25
  6. Step 6: Final answer
    x = 671,111.29

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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.