Home / 428,710.74-591,578.20-247,481.06

Finding the Fourth Proportional to 428,710.74, 591,578.20 and 247,481.06

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Solution

The fourth proportional to 428,710.74, 591,578.20 and 247,481.06 is: 341,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,710.74 : 591,578.20 = 247,481.06 : x
  2. Step 2: Convert to fraction form
    428,710.74/591,578.20 = 247,481.06/x
  3. Step 3: Cross multiply
    428,710.74x = 591,578.20 × 247,481.06
  4. Step 4: Simplify right side
    428,710.74x = 146,404,395,813.60
  5. Step 5: Solve for x
    x = 146,404,395,813.60/428,710.74
  6. Step 6: Final answer
    x = 341,499.25

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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.