Home / 428,769.74-591,698.21-235,173.48

Finding the Fourth Proportional to 428,769.74, 591,698.21 and 235,173.48

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Solution

The fourth proportional to 428,769.74, 591,698.21 and 235,173.48 is: 324,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,769.74 : 591,698.21 = 235,173.48 : x
  2. Step 2: Convert to fraction form
    428,769.74/591,698.21 = 235,173.48/x
  3. Step 3: Cross multiply
    428,769.74x = 591,698.21 × 235,173.48
  4. Step 4: Simplify right side
    428,769.74x = 139,151,725,979.60
  5. Step 5: Solve for x
    x = 139,151,725,979.60/428,769.74
  6. Step 6: Final answer
    x = 324,537.19

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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.