Home / 815,971.16-1,223,956.46-255,005.64

Finding the Fourth Proportional to 815,971.16, 1,223,956.46 and 255,005.64

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Solution

The fourth proportional to 815,971.16, 1,223,956.46 and 255,005.64 is: 382,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,971.16 : 1,223,956.46 = 255,005.64 : x
  2. Step 2: Convert to fraction form
    815,971.16/1,223,956.46 = 255,005.64/x
  3. Step 3: Cross multiply
    815,971.16x = 1,223,956.46 × 255,005.64
  4. Step 4: Simplify right side
    815,971.16x = 312,115,800,414.43
  5. Step 5: Solve for x
    x = 312,115,800,414.43/815,971.16
  6. Step 6: Final answer
    x = 382,508.37

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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.