Home / 2,155,761.81-3,233,090.97-639,090.07

Finding the Fourth Proportional to 2,155,761.81, 3,233,090.97 and 639,090.07

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Solution

The fourth proportional to 2,155,761.81, 3,233,090.97 and 639,090.07 is: 958,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,761.81 : 3,233,090.97 = 639,090.07 : x
  2. Step 2: Convert to fraction form
    2,155,761.81/3,233,090.97 = 639,090.07/x
  3. Step 3: Cross multiply
    2,155,761.81x = 3,233,090.97 × 639,090.07
  4. Step 4: Simplify right side
    2,155,761.81x = 2,066,236,326,250.94
  5. Step 5: Solve for x
    x = 2,066,236,326,250.94/2,155,761.81
  6. Step 6: Final answer
    x = 958,471.53

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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.