Home / 766,284.21-1,057,555.29-422,155.41

Finding the Fourth Proportional to 766,284.21, 1,057,555.29 and 422,155.41

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Solution

The fourth proportional to 766,284.21, 1,057,555.29 and 422,155.41 is: 582,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,284.21 : 1,057,555.29 = 422,155.41 : x
  2. Step 2: Convert to fraction form
    766,284.21/1,057,555.29 = 422,155.41/x
  3. Step 3: Cross multiply
    766,284.21x = 1,057,555.29 × 422,155.41
  4. Step 4: Simplify right side
    766,284.21x = 446,452,687,047.62
  5. Step 5: Solve for x
    x = 446,452,687,047.62/766,284.21
  6. Step 6: Final answer
    x = 582,620.24

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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.