Home / 780,213.44-1,170,658.24-275,135.30

Finding the Fourth Proportional to 780,213.44, 1,170,658.24 and 275,135.30

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Solution

The fourth proportional to 780,213.44, 1,170,658.24 and 275,135.30 is: 412,822.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,213.44 : 1,170,658.24 = 275,135.30 : x
  2. Step 2: Convert to fraction form
    780,213.44/1,170,658.24 = 275,135.30/x
  3. Step 3: Cross multiply
    780,213.44x = 1,170,658.24 × 275,135.30
  4. Step 4: Simplify right side
    780,213.44x = 322,089,406,059.87
  5. Step 5: Solve for x
    x = 322,089,406,059.87/780,213.44
  6. Step 6: Final answer
    x = 412,822.17

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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.