Home / 1,375,611.92-1,898,403.74-763,764.71

Finding the Fourth Proportional to 1,375,611.92, 1,898,403.74 and 763,764.71

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Solution

The fourth proportional to 1,375,611.92, 1,898,403.74 and 763,764.71 is: 1,054,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,611.92 : 1,898,403.74 = 763,764.71 : x
  2. Step 2: Convert to fraction form
    1,375,611.92/1,898,403.74 = 763,764.71/x
  3. Step 3: Cross multiply
    1,375,611.92x = 1,898,403.74 × 763,764.71
  4. Step 4: Simplify right side
    1,375,611.92x = 1,449,933,781,944.02
  5. Step 5: Solve for x
    x = 1,449,933,781,944.02/1,375,611.92
  6. Step 6: Final answer
    x = 1,054,028.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.