Home / 780,357.25-1,170,629.66-274,813.74

Finding the Fourth Proportional to 780,357.25, 1,170,629.66 and 274,813.74

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Solution

The fourth proportional to 780,357.25, 1,170,629.66 and 274,813.74 is: 412,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,357.25 : 1,170,629.66 = 274,813.74 : x
  2. Step 2: Convert to fraction form
    780,357.25/1,170,629.66 = 274,813.74/x
  3. Step 3: Cross multiply
    780,357.25x = 1,170,629.66 × 274,813.74
  4. Step 4: Simplify right side
    780,357.25x = 321,705,113,645.46
  5. Step 5: Solve for x
    x = 321,705,113,645.46/780,357.25
  6. Step 6: Final answer
    x = 412,253.64

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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.