Home / 323,647.45-446,824.83-287,738.08

Finding the Fourth Proportional to 323,647.45, 446,824.83 and 287,738.08

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Solution

The fourth proportional to 323,647.45, 446,824.83 and 287,738.08 is: 397,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,647.45 : 446,824.83 = 287,738.08 : x
  2. Step 2: Convert to fraction form
    323,647.45/446,824.83 = 287,738.08/x
  3. Step 3: Cross multiply
    323,647.45x = 446,824.83 × 287,738.08
  4. Step 4: Simplify right side
    323,647.45x = 128,568,519,201.01
  5. Step 5: Solve for x
    x = 128,568,519,201.01/323,647.45
  6. Step 6: Final answer
    x = 397,248.68

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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.