Home / 1,381,484.40-1,906,507.32-769,636.83

Finding the Fourth Proportional to 1,381,484.40, 1,906,507.32 and 769,636.83

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Solution

The fourth proportional to 1,381,484.40, 1,906,507.32 and 769,636.83 is: 1,062,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,484.40 : 1,906,507.32 = 769,636.83 : x
  2. Step 2: Convert to fraction form
    1,381,484.40/1,906,507.32 = 769,636.83/x
  3. Step 3: Cross multiply
    1,381,484.40x = 1,906,507.32 × 769,636.83
  4. Step 4: Simplify right side
    1,381,484.40x = 1,467,318,250,136.60
  5. Step 5: Solve for x
    x = 1,467,318,250,136.60/1,381,484.40
  6. Step 6: Final answer
    x = 1,062,131.61

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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.