Home / 751,767.92-1,128,614.17-645,829.64

Finding the Fourth Proportional to 751,767.92, 1,128,614.17 and 645,829.64

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Solution

The fourth proportional to 751,767.92, 1,128,614.17 and 645,829.64 is: 969,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,767.92 : 1,128,614.17 = 645,829.64 : x
  2. Step 2: Convert to fraction form
    751,767.92/1,128,614.17 = 645,829.64/x
  3. Step 3: Cross multiply
    751,767.92x = 1,128,614.17 × 645,829.64
  4. Step 4: Simplify right side
    751,767.92x = 728,892,483,110.00
  5. Step 5: Solve for x
    x = 728,892,483,110.00/751,767.92
  6. Step 6: Final answer
    x = 969,571.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.