Home / 825,215.40-1,236,656.70-508,732.20

Finding the Fourth Proportional to 825,215.40, 1,236,656.70 and 508,732.20

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Solution

The fourth proportional to 825,215.40, 1,236,656.70 and 508,732.20 is: 762,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,215.40 : 1,236,656.70 = 508,732.20 : x
  2. Step 2: Convert to fraction form
    825,215.40/1,236,656.70 = 508,732.20/x
  3. Step 3: Cross multiply
    825,215.40x = 1,236,656.70 × 508,732.20
  4. Step 4: Simplify right side
    825,215.40x = 629,127,083,635.74
  5. Step 5: Solve for x
    x = 629,127,083,635.74/825,215.40
  6. Step 6: Final answer
    x = 762,379.23

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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.