Home / 428,473.45-591,481.69-299,916.83

Finding the Fourth Proportional to 428,473.45, 591,481.69 and 299,916.83

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Solution

The fourth proportional to 428,473.45, 591,481.69 and 299,916.83 is: 414,017.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,473.45 : 591,481.69 = 299,916.83 : x
  2. Step 2: Convert to fraction form
    428,473.45/591,481.69 = 299,916.83/x
  3. Step 3: Cross multiply
    428,473.45x = 591,481.69 × 299,916.83
  4. Step 4: Simplify right side
    428,473.45x = 177,395,312,556.70
  5. Step 5: Solve for x
    x = 177,395,312,556.70/428,473.45
  6. Step 6: Final answer
    x = 414,017.05

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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.