Home / 751,972.22-1,128,024.81-212,233.31

Finding the Fourth Proportional to 751,972.22, 1,128,024.81 and 212,233.31

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Solution

The fourth proportional to 751,972.22, 1,128,024.81 and 212,233.31 is: 318,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,972.22 : 1,128,024.81 = 212,233.31 : x
  2. Step 2: Convert to fraction form
    751,972.22/1,128,024.81 = 212,233.31/x
  3. Step 3: Cross multiply
    751,972.22x = 1,128,024.81 × 212,233.31
  4. Step 4: Simplify right side
    751,972.22x = 239,404,433,548.30
  5. Step 5: Solve for x
    x = 239,404,433,548.30/751,972.22
  6. Step 6: Final answer
    x = 318,368.72

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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.