Home / 766,322.44-1,057,558.07-426,790.69

Finding the Fourth Proportional to 766,322.44, 1,057,558.07 and 426,790.69

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Solution

The fourth proportional to 766,322.44, 1,057,558.07 and 426,790.69 is: 588,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,322.44 : 1,057,558.07 = 426,790.69 : x
  2. Step 2: Convert to fraction form
    766,322.44/1,057,558.07 = 426,790.69/x
  3. Step 3: Cross multiply
    766,322.44x = 1,057,558.07 × 426,790.69
  4. Step 4: Simplify right side
    766,322.44x = 451,355,936,833.45
  5. Step 5: Solve for x
    x = 451,355,936,833.45/766,322.44
  6. Step 6: Final answer
    x = 588,989.59

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Double scale
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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.