Home / 1,187,183.48-1,638,355.02-677,876.60

Finding the Fourth Proportional to 1,187,183.48, 1,638,355.02 and 677,876.60

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Solution

The fourth proportional to 1,187,183.48, 1,638,355.02 and 677,876.60 is: 935,493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,183.48 : 1,638,355.02 = 677,876.60 : x
  2. Step 2: Convert to fraction form
    1,187,183.48/1,638,355.02 = 677,876.60/x
  3. Step 3: Cross multiply
    1,187,183.48x = 1,638,355.02 × 677,876.60
  4. Step 4: Simplify right side
    1,187,183.48x = 1,110,602,530,550.53
  5. Step 5: Solve for x
    x = 1,110,602,530,550.53/1,187,183.48
  6. Step 6: Final answer
    x = 935,493.59

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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.