Home / 766,601.20-1,057,955.96-422,436.56

Finding the Fourth Proportional to 766,601.20, 1,057,955.96 and 422,436.56

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Solution

The fourth proportional to 766,601.20, 1,057,955.96 and 422,436.56 is: 582,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,601.20 : 1,057,955.96 = 422,436.56 : x
  2. Step 2: Convert to fraction form
    766,601.20/1,057,955.96 = 422,436.56/x
  3. Step 3: Cross multiply
    766,601.20x = 1,057,955.96 × 422,436.56
  4. Step 4: Simplify right side
    766,601.20x = 446,919,276,373.90
  5. Step 5: Solve for x
    x = 446,919,276,373.90/766,601.20
  6. Step 6: Final answer
    x = 582,987.97

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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.