Home / 781,572.05-1,171,745.60-308,611.43

Finding the Fourth Proportional to 781,572.05, 1,171,745.60 and 308,611.43

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Solution

The fourth proportional to 781,572.05, 1,171,745.60 and 308,611.43 is: 462,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,572.05 : 1,171,745.60 = 308,611.43 : x
  2. Step 2: Convert to fraction form
    781,572.05/1,171,745.60 = 308,611.43/x
  3. Step 3: Cross multiply
    781,572.05x = 1,171,745.60 × 308,611.43
  4. Step 4: Simplify right side
    781,572.05x = 361,614,077,810.42
  5. Step 5: Solve for x
    x = 361,614,077,810.42/781,572.05
  6. Step 6: Final answer
    x = 462,675.30

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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.