Home / 1,354,936.66-1,869,677.85-782,161.36

Finding the Fourth Proportional to 1,354,936.66, 1,869,677.85 and 782,161.36

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Solution

The fourth proportional to 1,354,936.66, 1,869,677.85 and 782,161.36 is: 1,079,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,936.66 : 1,869,677.85 = 782,161.36 : x
  2. Step 2: Convert to fraction form
    1,354,936.66/1,869,677.85 = 782,161.36/x
  3. Step 3: Cross multiply
    1,354,936.66x = 1,869,677.85 × 782,161.36
  4. Step 4: Simplify right side
    1,354,936.66x = 1,462,389,769,917.88
  5. Step 5: Solve for x
    x = 1,462,389,769,917.88/1,354,936.66
  6. Step 6: Final answer
    x = 1,079,304.90

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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.