Home / 490,976.48-677,541.12-276,116.48

Finding the Fourth Proportional to 490,976.48, 677,541.12 and 276,116.48

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Solution

The fourth proportional to 490,976.48, 677,541.12 and 276,116.48 is: 381,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,976.48 : 677,541.12 = 276,116.48 : x
  2. Step 2: Convert to fraction form
    490,976.48/677,541.12 = 276,116.48/x
  3. Step 3: Cross multiply
    490,976.48x = 677,541.12 × 276,116.48
  4. Step 4: Simplify right side
    490,976.48x = 187,080,269,109.66
  5. Step 5: Solve for x
    x = 187,080,269,109.66/490,976.48
  6. Step 6: Final answer
    x = 381,037.13

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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.