Home / 780,360.02-1,170,633.72-274,816.43

Finding the Fourth Proportional to 780,360.02, 1,170,633.72 and 274,816.43

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Solution

The fourth proportional to 780,360.02, 1,170,633.72 and 274,816.43 is: 412,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,360.02 : 1,170,633.72 = 274,816.43 : x
  2. Step 2: Convert to fraction form
    780,360.02/1,170,633.72 = 274,816.43/x
  3. Step 3: Cross multiply
    780,360.02x = 1,170,633.72 × 274,816.43
  4. Step 4: Simplify right side
    780,360.02x = 321,709,379,768.02
  5. Step 5: Solve for x
    x = 321,709,379,768.02/780,360.02
  6. Step 6: Final answer
    x = 412,257.64

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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.