Home / 761,739.48-1,051,233.66-422,208

Finding the Fourth Proportional to 761,739.48, 1,051,233.66 and 422,208

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Solution

The fourth proportional to 761,739.48, 1,051,233.66 and 422,208 is: 582,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,739.48 : 1,051,233.66 = 422,208 : x
  2. Step 2: Convert to fraction form
    761,739.48/1,051,233.66 = 422,208/x
  3. Step 3: Cross multiply
    761,739.48x = 1,051,233.66 × 422,208
  4. Step 4: Simplify right side
    761,739.48x = 443,839,261,121.28
  5. Step 5: Solve for x
    x = 443,839,261,121.28/761,739.48
  6. Step 6: Final answer
    x = 582,665.43

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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.