Home / 428,808.12-591,783.66-237,829.56

Finding the Fourth Proportional to 428,808.12, 591,783.66 and 237,829.56

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Solution

The fourth proportional to 428,808.12, 591,783.66 and 237,829.56 is: 328,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,808.12 : 591,783.66 = 237,829.56 : x
  2. Step 2: Convert to fraction form
    428,808.12/591,783.66 = 237,829.56/x
  3. Step 3: Cross multiply
    428,808.12x = 591,783.66 × 237,829.56
  4. Step 4: Simplify right side
    428,808.12x = 140,743,647,472.99
  5. Step 5: Solve for x
    x = 140,743,647,472.99/428,808.12
  6. Step 6: Final answer
    x = 328,220.57

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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.