Home / 751,951.25-1,127,993.24-212,212.31

Finding the Fourth Proportional to 751,951.25, 1,127,993.24 and 212,212.31

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Solution

The fourth proportional to 751,951.25, 1,127,993.24 and 212,212.31 is: 318,337.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,951.25 : 1,127,993.24 = 212,212.31 : x
  2. Step 2: Convert to fraction form
    751,951.25/1,127,993.24 = 212,212.31/x
  3. Step 3: Cross multiply
    751,951.25x = 1,127,993.24 × 212,212.31
  4. Step 4: Simplify right side
    751,951.25x = 239,374,046,015.35
  5. Step 5: Solve for x
    x = 239,374,046,015.35/751,951.25
  6. Step 6: Final answer
    x = 318,337.19

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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.