Home / 766,552.90-1,057,889.45-422,388.41

Finding the Fourth Proportional to 766,552.90, 1,057,889.45 and 422,388.41

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Solution

The fourth proportional to 766,552.90, 1,057,889.45 and 422,388.41 is: 582,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,552.90 : 1,057,889.45 = 422,388.41 : x
  2. Step 2: Convert to fraction form
    766,552.90/1,057,889.45 = 422,388.41/x
  3. Step 3: Cross multiply
    766,552.90x = 1,057,889.45 × 422,388.41
  4. Step 4: Simplify right side
    766,552.90x = 446,840,242,741.28
  5. Step 5: Solve for x
    x = 446,840,242,741.28/766,552.90
  6. Step 6: Final answer
    x = 582,921.60

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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.