Home / 751,352.72-1,127,213.62-218,878.42

Finding the Fourth Proportional to 751,352.72, 1,127,213.62 and 218,878.42

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Solution

The fourth proportional to 751,352.72, 1,127,213.62 and 218,878.42 is: 328,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,352.72 : 1,127,213.62 = 218,878.42 : x
  2. Step 2: Convert to fraction form
    751,352.72/1,127,213.62 = 218,878.42/x
  3. Step 3: Cross multiply
    751,352.72x = 1,127,213.62 × 218,878.42
  4. Step 4: Simplify right side
    751,352.72x = 246,722,736,148.08
  5. Step 5: Solve for x
    x = 246,722,736,148.08/751,352.72
  6. Step 6: Final answer
    x = 328,371.39

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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.