Home / 751,133.97-1,035,999.45-521,691.56

Finding the Fourth Proportional to 751,133.97, 1,035,999.45 and 521,691.56

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Solution

The fourth proportional to 751,133.97, 1,035,999.45 and 521,691.56 is: 719,541.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,133.97 : 1,035,999.45 = 521,691.56 : x
  2. Step 2: Convert to fraction form
    751,133.97/1,035,999.45 = 521,691.56/x
  3. Step 3: Cross multiply
    751,133.97x = 1,035,999.45 × 521,691.56
  4. Step 4: Simplify right side
    751,133.97x = 540,472,164,049.65
  5. Step 5: Solve for x
    x = 540,472,164,049.65/751,133.97
  6. Step 6: Final answer
    x = 719,541.63

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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.