Home / 751,982.33-1,037,129.87-661,145.69

Finding the Fourth Proportional to 751,982.33, 1,037,129.87 and 661,145.69

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Solution

The fourth proportional to 751,982.33, 1,037,129.87 and 661,145.69 is: 911,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,982.33 : 1,037,129.87 = 661,145.69 : x
  2. Step 2: Convert to fraction form
    751,982.33/1,037,129.87 = 661,145.69/x
  3. Step 3: Cross multiply
    751,982.33x = 1,037,129.87 × 661,145.69
  4. Step 4: Simplify right side
    751,982.33x = 685,693,940,215.03
  5. Step 5: Solve for x
    x = 685,693,940,215.03/751,982.33
  6. Step 6: Final answer
    x = 911,848.47

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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.