Home / 439,726.39-606,736.11-276,288.19

Finding the Fourth Proportional to 439,726.39, 606,736.11 and 276,288.19

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Solution

The fourth proportional to 439,726.39, 606,736.11 and 276,288.19 is: 381,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,726.39 : 606,736.11 = 276,288.19 : x
  2. Step 2: Convert to fraction form
    439,726.39/606,736.11 = 276,288.19/x
  3. Step 3: Cross multiply
    439,726.39x = 606,736.11 × 276,288.19
  4. Step 4: Simplify right side
    439,726.39x = 167,634,021,361.88
  5. Step 5: Solve for x
    x = 167,634,021,361.88/439,726.39
  6. Step 6: Final answer
    x = 381,223.48

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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.