Home / 425,893.20-587,438.10-345,324.12

Finding the Fourth Proportional to 425,893.20, 587,438.10 and 345,324.12

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Solution

The fourth proportional to 425,893.20, 587,438.10 and 345,324.12 is: 476,308.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,893.20 : 587,438.10 = 345,324.12 : x
  2. Step 2: Convert to fraction form
    425,893.20/587,438.10 = 345,324.12/x
  3. Step 3: Cross multiply
    425,893.20x = 587,438.10 × 345,324.12
  4. Step 4: Simplify right side
    425,893.20x = 202,856,544,936.97
  5. Step 5: Solve for x
    x = 202,856,544,936.97/425,893.20
  6. Step 6: Final answer
    x = 476,308.49

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1.5x scale

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.