Home / 428,710.98-591,578.53-247,481.29

Finding the Fourth Proportional to 428,710.98, 591,578.53 and 247,481.29

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Solution

The fourth proportional to 428,710.98, 591,578.53 and 247,481.29 is: 341,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,710.98 : 591,578.53 = 247,481.29 : x
  2. Step 2: Convert to fraction form
    428,710.98/591,578.53 = 247,481.29/x
  3. Step 3: Cross multiply
    428,710.98x = 591,578.53 × 247,481.29
  4. Step 4: Simplify right side
    428,710.98x = 146,404,617,740.70
  5. Step 5: Solve for x
    x = 146,404,617,740.70/428,710.98
  6. Step 6: Final answer
    x = 341,499.58

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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.