Home / 790,879.56-1,091,502.18-451,405.32

Finding the Fourth Proportional to 790,879.56, 1,091,502.18 and 451,405.32

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Solution

The fourth proportional to 790,879.56, 1,091,502.18 and 451,405.32 is: 622,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,879.56 : 1,091,502.18 = 451,405.32 : x
  2. Step 2: Convert to fraction form
    790,879.56/1,091,502.18 = 451,405.32/x
  3. Step 3: Cross multiply
    790,879.56x = 1,091,502.18 × 451,405.32
  4. Step 4: Simplify right side
    790,879.56x = 492,709,890,843.60
  5. Step 5: Solve for x
    x = 492,709,890,843.60/790,879.56
  6. Step 6: Final answer
    x = 622,989.79

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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.