Home / 428,628.78-591,504.93-237,642.12

Finding the Fourth Proportional to 428,628.78, 591,504.93 and 237,642.12

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Solution

The fourth proportional to 428,628.78, 591,504.93 and 237,642.12 is: 327,944.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,628.78 : 591,504.93 = 237,642.12 : x
  2. Step 2: Convert to fraction form
    428,628.78/591,504.93 = 237,642.12/x
  3. Step 3: Cross multiply
    428,628.78x = 591,504.93 × 237,642.12
  4. Step 4: Simplify right side
    428,628.78x = 140,566,485,555.65
  5. Step 5: Solve for x
    x = 140,566,485,555.65/428,628.78
  6. Step 6: Final answer
    x = 327,944.58

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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.