Home / 766,113.85-1,057,227.24-421,943.23

Finding the Fourth Proportional to 766,113.85, 1,057,227.24 and 421,943.23

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Solution

The fourth proportional to 766,113.85, 1,057,227.24 and 421,943.23 is: 582,276.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,113.85 : 1,057,227.24 = 421,943.23 : x
  2. Step 2: Convert to fraction form
    766,113.85/1,057,227.24 = 421,943.23/x
  3. Step 3: Cross multiply
    766,113.85x = 1,057,227.24 × 421,943.23
  4. Step 4: Simplify right side
    766,113.85x = 446,089,876,489.59
  5. Step 5: Solve for x
    x = 446,089,876,489.59/766,113.85
  6. Step 6: Final answer
    x = 582,276.22

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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.