Home / 428,635.89-591,550.97-237,686.49

Finding the Fourth Proportional to 428,635.89, 591,550.97 and 237,686.49

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Solution

The fourth proportional to 428,635.89, 591,550.97 and 237,686.49 is: 328,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,635.89 : 591,550.97 = 237,686.49 : x
  2. Step 2: Convert to fraction form
    428,635.89/591,550.97 = 237,686.49/x
  3. Step 3: Cross multiply
    428,635.89x = 591,550.97 × 237,686.49
  4. Step 4: Simplify right side
    428,635.89x = 140,603,672,526.96
  5. Step 5: Solve for x
    x = 140,603,672,526.96/428,635.89
  6. Step 6: Final answer
    x = 328,025.90

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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.