Home / 780,212.44-1,170,656.74-275,134.30

Finding the Fourth Proportional to 780,212.44, 1,170,656.74 and 275,134.30

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Solution

The fourth proportional to 780,212.44, 1,170,656.74 and 275,134.30 is: 412,820.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,212.44 : 1,170,656.74 = 275,134.30 : x
  2. Step 2: Convert to fraction form
    780,212.44/1,170,656.74 = 275,134.30/x
  3. Step 3: Cross multiply
    780,212.44x = 1,170,656.74 × 275,134.30
  4. Step 4: Simplify right side
    780,212.44x = 322,087,822,700.18
  5. Step 5: Solve for x
    x = 322,087,822,700.18/780,212.44
  6. Step 6: Final answer
    x = 412,820.67

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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.