Home / 751,878.96-1,127,884.75-212,139.96

Finding the Fourth Proportional to 751,878.96, 1,127,884.75 and 212,139.96

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Solution

The fourth proportional to 751,878.96, 1,127,884.75 and 212,139.96 is: 318,228.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,878.96 : 1,127,884.75 = 212,139.96 : x
  2. Step 2: Convert to fraction form
    751,878.96/1,127,884.75 = 212,139.96/x
  3. Step 3: Cross multiply
    751,878.96x = 1,127,884.75 × 212,139.96
  4. Step 4: Simplify right side
    751,878.96x = 239,269,428,527.33
  5. Step 5: Solve for x
    x = 239,269,428,527.33/751,878.96
  6. Step 6: Final answer
    x = 318,228.65

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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.