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Finding the Fourth Proportional to 490,880.22, 677,401.17 and 276,014.76

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Solution

The fourth proportional to 490,880.22, 677,401.17 and 276,014.76 is: 380,892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,880.22 : 677,401.17 = 276,014.76 : x
  2. Step 2: Convert to fraction form
    490,880.22/677,401.17 = 276,014.76/x
  3. Step 3: Cross multiply
    490,880.22x = 677,401.17 × 276,014.76
  4. Step 4: Simplify right side
    490,880.22x = 186,972,721,361.27
  5. Step 5: Solve for x
    x = 186,972,721,361.27/490,880.22
  6. Step 6: Final answer
    x = 380,892.76

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1.5x scale

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.