Home / 780,214.82-1,170,660.30-275,136.70

Finding the Fourth Proportional to 780,214.82, 1,170,660.30 and 275,136.70

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Solution

The fourth proportional to 780,214.82, 1,170,660.30 and 275,136.70 is: 412,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,214.82 : 1,170,660.30 = 275,136.70 : x
  2. Step 2: Convert to fraction form
    780,214.82/1,170,660.30 = 275,136.70/x
  3. Step 3: Cross multiply
    780,214.82x = 1,170,660.30 × 275,136.70
  4. Step 4: Simplify right side
    780,214.82x = 322,091,611,763.01
  5. Step 5: Solve for x
    x = 322,091,611,763.01/780,214.82
  6. Step 6: Final answer
    x = 412,824.27

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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.