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Finding the Fourth Proportional to 490,896.48, 677,441.18 and 276,034.67

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Solution

The fourth proportional to 490,896.48, 677,441.18 and 276,034.67 is: 380,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,896.48 : 677,441.18 = 276,034.67 : x
  2. Step 2: Convert to fraction form
    490,896.48/677,441.18 = 276,034.67/x
  3. Step 3: Cross multiply
    490,896.48x = 677,441.18 × 276,034.67
  4. Step 4: Simplify right side
    490,896.48x = 186,997,247,798.33
  5. Step 5: Solve for x
    x = 186,997,247,798.33/490,896.48
  6. Step 6: Final answer
    x = 380,930.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.