Home / 668,863.54-1,003,623.36-313,906.42

Finding the Fourth Proportional to 668,863.54, 1,003,623.36 and 313,906.42

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Solution

The fourth proportional to 668,863.54, 1,003,623.36 and 313,906.42 is: 471,013.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,863.54 : 1,003,623.36 = 313,906.42 : x
  2. Step 2: Convert to fraction form
    668,863.54/1,003,623.36 = 313,906.42/x
  3. Step 3: Cross multiply
    668,863.54x = 1,003,623.36 × 313,906.42
  4. Step 4: Simplify right side
    668,863.54x = 315,043,815,965.97
  5. Step 5: Solve for x
    x = 315,043,815,965.97/668,863.54
  6. Step 6: Final answer
    x = 471,013.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.