Home / 790,449.92-1,185,863.52-257,971.96

Finding the Fourth Proportional to 790,449.92, 1,185,863.52 and 257,971.96

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Solution

The fourth proportional to 790,449.92, 1,185,863.52 and 257,971.96 is: 387,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,449.92 : 1,185,863.52 = 257,971.96 : x
  2. Step 2: Convert to fraction form
    790,449.92/1,185,863.52 = 257,971.96/x
  3. Step 3: Cross multiply
    790,449.92x = 1,185,863.52 × 257,971.96
  4. Step 4: Simplify right side
    790,449.92x = 305,919,536,546.90
  5. Step 5: Solve for x
    x = 305,919,536,546.90/790,449.92
  6. Step 6: Final answer
    x = 387,019.50

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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.