Home / 490,946.31-677,426.85-276,073.56

Finding the Fourth Proportional to 490,946.31, 677,426.85 and 276,073.56

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Solution

The fourth proportional to 490,946.31, 677,426.85 and 276,073.56 is: 380,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,946.31 : 677,426.85 = 276,073.56 : x
  2. Step 2: Convert to fraction form
    490,946.31/677,426.85 = 276,073.56/x
  3. Step 3: Cross multiply
    490,946.31x = 677,426.85 × 276,073.56
  4. Step 4: Simplify right side
    490,946.31x = 187,019,642,119.09
  5. Step 5: Solve for x
    x = 187,019,642,119.09/490,946.31
  6. Step 6: Final answer
    x = 380,937.06

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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.