Home / 774,215.44-1,161,128.28-275,462.80

Finding the Fourth Proportional to 774,215.44, 1,161,128.28 and 275,462.80

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Solution

The fourth proportional to 774,215.44, 1,161,128.28 and 275,462.80 is: 413,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,215.44 : 1,161,128.28 = 275,462.80 : x
  2. Step 2: Convert to fraction form
    774,215.44/1,161,128.28 = 275,462.80/x
  3. Step 3: Cross multiply
    774,215.44x = 1,161,128.28 × 275,462.80
  4. Step 4: Simplify right side
    774,215.44x = 319,847,647,167.98
  5. Step 5: Solve for x
    x = 319,847,647,167.98/774,215.44
  6. Step 6: Final answer
    x = 413,124.86

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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.