Home / 781,572.21-1,171,745.88-308,611.59

Finding the Fourth Proportional to 781,572.21, 1,171,745.88 and 308,611.59

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Solution

The fourth proportional to 781,572.21, 1,171,745.88 and 308,611.59 is: 462,675.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,572.21 : 1,171,745.88 = 308,611.59 : x
  2. Step 2: Convert to fraction form
    781,572.21/1,171,745.88 = 308,611.59/x
  3. Step 3: Cross multiply
    781,572.21x = 1,171,745.88 × 308,611.59
  4. Step 4: Simplify right side
    781,572.21x = 361,614,359,102.75
  5. Step 5: Solve for x
    x = 361,614,359,102.75/781,572.21
  6. Step 6: Final answer
    x = 462,675.56

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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.