Home / 790,738.77-1,091,238.17-451,238.61

Finding the Fourth Proportional to 790,738.77, 1,091,238.17 and 451,238.61

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Solution

The fourth proportional to 790,738.77, 1,091,238.17 and 451,238.61 is: 622,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,738.77 : 1,091,238.17 = 451,238.61 : x
  2. Step 2: Convert to fraction form
    790,738.77/1,091,238.17 = 451,238.61/x
  3. Step 3: Cross multiply
    790,738.77x = 1,091,238.17 × 451,238.61
  4. Step 4: Simplify right side
    790,738.77x = 492,408,792,753.55
  5. Step 5: Solve for x
    x = 492,408,792,753.55/790,738.77
  6. Step 6: Final answer
    x = 622,719.93

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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.