Home / 780,358.76-1,170,631.85-274,815.18

Finding the Fourth Proportional to 780,358.76, 1,170,631.85 and 274,815.18

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Solution

The fourth proportional to 780,358.76, 1,170,631.85 and 274,815.18 is: 412,255.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,358.76 : 1,170,631.85 = 274,815.18 : x
  2. Step 2: Convert to fraction form
    780,358.76/1,170,631.85 = 274,815.18/x
  3. Step 3: Cross multiply
    780,358.76x = 1,170,631.85 × 274,815.18
  4. Step 4: Simplify right side
    780,358.76x = 321,707,401,197.41
  5. Step 5: Solve for x
    x = 321,707,401,197.41/780,358.76
  6. Step 6: Final answer
    x = 412,255.77

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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.