Home / 428,388.90-591,241.82-273,407.06

Finding the Fourth Proportional to 428,388.90, 591,241.82 and 273,407.06

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Solution

The fourth proportional to 428,388.90, 591,241.82 and 273,407.06 is: 377,343.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,388.90 : 591,241.82 = 273,407.06 : x
  2. Step 2: Convert to fraction form
    428,388.90/591,241.82 = 273,407.06/x
  3. Step 3: Cross multiply
    428,388.90x = 591,241.82 × 273,407.06
  4. Step 4: Simplify right side
    428,388.90x = 161,649,683,432.01
  5. Step 5: Solve for x
    x = 161,649,683,432.01/428,388.90
  6. Step 6: Final answer
    x = 377,343.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.