Home / 790,188.38-1,185,162.30-257,708.56

Finding the Fourth Proportional to 790,188.38, 1,185,162.30 and 257,708.56

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Solution

The fourth proportional to 790,188.38, 1,185,162.30 and 257,708.56 is: 386,523.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,188.38 : 1,185,162.30 = 257,708.56 : x
  2. Step 2: Convert to fraction form
    790,188.38/1,185,162.30 = 257,708.56/x
  3. Step 3: Cross multiply
    790,188.38x = 1,185,162.30 × 257,708.56
  4. Step 4: Simplify right side
    790,188.38x = 305,426,469,699.29
  5. Step 5: Solve for x
    x = 305,426,469,699.29/790,188.38
  6. Step 6: Final answer
    x = 386,523.62

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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.