Home / 1,305,142.26-1,957,487.64-345,611.66

Finding the Fourth Proportional to 1,305,142.26, 1,957,487.64 and 345,611.66

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Solution

The fourth proportional to 1,305,142.26, 1,957,487.64 and 345,611.66 is: 518,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,142.26 : 1,957,487.64 = 345,611.66 : x
  2. Step 2: Convert to fraction form
    1,305,142.26/1,957,487.64 = 345,611.66/x
  3. Step 3: Cross multiply
    1,305,142.26x = 1,957,487.64 × 345,611.66
  4. Step 4: Simplify right side
    1,305,142.26x = 676,530,552,689.88
  5. Step 5: Solve for x
    x = 676,530,552,689.88/1,305,142.26
  6. Step 6: Final answer
    x = 518,357.71

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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.