Home / 780,211.44-1,170,655.24-275,133.30

Finding the Fourth Proportional to 780,211.44, 1,170,655.24 and 275,133.30

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Solution

The fourth proportional to 780,211.44, 1,170,655.24 and 275,133.30 is: 412,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,211.44 : 1,170,655.24 = 275,133.30 : x
  2. Step 2: Convert to fraction form
    780,211.44/1,170,655.24 = 275,133.30/x
  3. Step 3: Cross multiply
    780,211.44x = 1,170,655.24 × 275,133.30
  4. Step 4: Simplify right side
    780,211.44x = 322,086,239,343.49
  5. Step 5: Solve for x
    x = 322,086,239,343.49/780,211.44
  6. Step 6: Final answer
    x = 412,819.17

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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.