Home / 751,966.28-1,128,015.72-212,227.36

Finding the Fourth Proportional to 751,966.28, 1,128,015.72 and 212,227.36

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Solution

The fourth proportional to 751,966.28, 1,128,015.72 and 212,227.36 is: 318,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,966.28 : 1,128,015.72 = 212,227.36 : x
  2. Step 2: Convert to fraction form
    751,966.28/1,128,015.72 = 212,227.36/x
  3. Step 3: Cross multiply
    751,966.28x = 1,128,015.72 × 212,227.36
  4. Step 4: Simplify right side
    751,966.28x = 239,395,798,294.10
  5. Step 5: Solve for x
    x = 239,395,798,294.10/751,966.28
  6. Step 6: Final answer
    x = 318,359.75

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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.