Home / 751,908.30-1,127,928.69-212,169.33

Finding the Fourth Proportional to 751,908.30, 1,127,928.69 and 212,169.33

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Solution

The fourth proportional to 751,908.30, 1,127,928.69 and 212,169.33 is: 318,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,908.30 : 1,127,928.69 = 212,169.33 : x
  2. Step 2: Convert to fraction form
    751,908.30/1,127,928.69 = 212,169.33/x
  3. Step 3: Cross multiply
    751,908.30x = 1,127,928.69 × 212,169.33
  4. Step 4: Simplify right side
    751,908.30x = 239,311,874,445.08
  5. Step 5: Solve for x
    x = 239,311,874,445.08/751,908.30
  6. Step 6: Final answer
    x = 318,272.69

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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.