Home / 780,227.02-1,170,678.57-275,148.87

Finding the Fourth Proportional to 780,227.02, 1,170,678.57 and 275,148.87

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Solution

The fourth proportional to 780,227.02, 1,170,678.57 and 275,148.87 is: 412,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,227.02 : 1,170,678.57 = 275,148.87 : x
  2. Step 2: Convert to fraction form
    780,227.02/1,170,678.57 = 275,148.87/x
  3. Step 3: Cross multiply
    780,227.02x = 1,170,678.57 × 275,148.87
  4. Step 4: Simplify right side
    780,227.02x = 322,110,885,668.72
  5. Step 5: Solve for x
    x = 322,110,885,668.72/780,227.02
  6. Step 6: Final answer
    x = 412,842.52

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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.