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Finding the Fourth Proportional to 490,954.52, 677,510.80 and 276,094.52

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Solution

The fourth proportional to 490,954.52, 677,510.80 and 276,094.52 is: 381,006.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,954.52 : 677,510.80 = 276,094.52 : x
  2. Step 2: Convert to fraction form
    490,954.52/677,510.80 = 276,094.52/x
  3. Step 3: Cross multiply
    490,954.52x = 677,510.80 × 276,094.52
  4. Step 4: Simplify right side
    490,954.52x = 187,057,019,120.82
  5. Step 5: Solve for x
    x = 187,057,019,120.82/490,954.52
  6. Step 6: Final answer
    x = 381,006.82

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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.