Home / 780,359.76-1,170,633.35-274,816.18

Finding the Fourth Proportional to 780,359.76, 1,170,633.35 and 274,816.18

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Solution

The fourth proportional to 780,359.76, 1,170,633.35 and 274,816.18 is: 412,257.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,359.76 : 1,170,633.35 = 274,816.18 : x
  2. Step 2: Convert to fraction form
    780,359.76/1,170,633.35 = 274,816.18/x
  3. Step 3: Cross multiply
    780,359.76x = 1,170,633.35 × 274,816.18
  4. Step 4: Simplify right side
    780,359.76x = 321,708,985,427.60
  5. Step 5: Solve for x
    x = 321,708,985,427.60/780,359.76
  6. Step 6: Final answer
    x = 412,257.27

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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.