Home / 752,090.40-1,128,014.64-219,486.60

Finding the Fourth Proportional to 752,090.40, 1,128,014.64 and 219,486.60

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Solution

The fourth proportional to 752,090.40, 1,128,014.64 and 219,486.60 is: 329,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,090.40 : 1,128,014.64 = 219,486.60 : x
  2. Step 2: Convert to fraction form
    752,090.40/1,128,014.64 = 219,486.60/x
  3. Step 3: Cross multiply
    752,090.40x = 1,128,014.64 × 219,486.60
  4. Step 4: Simplify right side
    752,090.40x = 247,584,098,083.82
  5. Step 5: Solve for x
    x = 247,584,098,083.82/752,090.40
  6. Step 6: Final answer
    x = 329,194.60

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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.