Home / 780,178.62-1,170,606.01-275,100.39

Finding the Fourth Proportional to 780,178.62, 1,170,606.01 and 275,100.39

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Solution

The fourth proportional to 780,178.62, 1,170,606.01 and 275,100.39 is: 412,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,178.62 : 1,170,606.01 = 275,100.39 : x
  2. Step 2: Convert to fraction form
    780,178.62/1,170,606.01 = 275,100.39/x
  3. Step 3: Cross multiply
    780,178.62x = 1,170,606.01 × 275,100.39
  4. Step 4: Simplify right side
    780,178.62x = 322,034,169,887.34
  5. Step 5: Solve for x
    x = 322,034,169,887.34/780,178.62
  6. Step 6: Final answer
    x = 412,769.80

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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.