Home / 428,588.20-591,486.66-237,661.48

Finding the Fourth Proportional to 428,588.20, 591,486.66 and 237,661.48

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Solution

The fourth proportional to 428,588.20, 591,486.66 and 237,661.48 is: 327,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,588.20 : 591,486.66 = 237,661.48 : x
  2. Step 2: Convert to fraction form
    428,588.20/591,486.66 = 237,661.48/x
  3. Step 3: Cross multiply
    428,588.20x = 591,486.66 × 237,661.48
  4. Step 4: Simplify right side
    428,588.20x = 140,573,595,015.86
  5. Step 5: Solve for x
    x = 140,573,595,015.86/428,588.20
  6. Step 6: Final answer
    x = 327,992.22

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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.