Home / 782,517.76-1,174,212.76-422,681.36

Finding the Fourth Proportional to 782,517.76, 1,174,212.76 and 422,681.36

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Solution

The fourth proportional to 782,517.76, 1,174,212.76 and 422,681.36 is: 634,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,517.76 : 1,174,212.76 = 422,681.36 : x
  2. Step 2: Convert to fraction form
    782,517.76/1,174,212.76 = 422,681.36/x
  3. Step 3: Cross multiply
    782,517.76x = 1,174,212.76 × 422,681.36
  4. Step 4: Simplify right side
    782,517.76x = 496,317,846,326.15
  5. Step 5: Solve for x
    x = 496,317,846,326.15/782,517.76
  6. Step 6: Final answer
    x = 634,257.61

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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.