Home / 766,228.56-1,057,382.49-422,096.68

Finding the Fourth Proportional to 766,228.56, 1,057,382.49 and 422,096.68

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Solution

The fourth proportional to 766,228.56, 1,057,382.49 and 422,096.68 is: 582,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,228.56 : 1,057,382.49 = 422,096.68 : x
  2. Step 2: Convert to fraction form
    766,228.56/1,057,382.49 = 422,096.68/x
  3. Step 3: Cross multiply
    766,228.56x = 1,057,382.49 × 422,096.68
  4. Step 4: Simplify right side
    766,228.56x = 446,317,638,519.13
  5. Step 5: Solve for x
    x = 446,317,638,519.13/766,228.56
  6. Step 6: Final answer
    x = 582,486.30

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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.