Home / 1,200,193.77-1,655,161.97-786,579.90

Finding the Fourth Proportional to 1,200,193.77, 1,655,161.97 and 786,579.90

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Solution

The fourth proportional to 1,200,193.77, 1,655,161.97 and 786,579.90 is: 1,084,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,193.77 : 1,655,161.97 = 786,579.90 : x
  2. Step 2: Convert to fraction form
    1,200,193.77/1,655,161.97 = 786,579.90/x
  3. Step 3: Cross multiply
    1,200,193.77x = 1,655,161.97 × 786,579.90
  4. Step 4: Simplify right side
    1,200,193.77x = 1,301,917,126,706.65
  5. Step 5: Solve for x
    x = 1,301,917,126,706.65/1,200,193.77
  6. Step 6: Final answer
    x = 1,084,755.77

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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.