Home / 1,187,180.48-1,638,350.88-677,873.60

Finding the Fourth Proportional to 1,187,180.48, 1,638,350.88 and 677,873.60

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Solution

The fourth proportional to 1,187,180.48, 1,638,350.88 and 677,873.60 is: 935,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,180.48 : 1,638,350.88 = 677,873.60 : x
  2. Step 2: Convert to fraction form
    1,187,180.48/1,638,350.88 = 677,873.60/x
  3. Step 3: Cross multiply
    1,187,180.48x = 1,638,350.88 × 677,873.60
  4. Step 4: Simplify right side
    1,187,180.48x = 1,110,594,809,088.77
  5. Step 5: Solve for x
    x = 1,110,594,809,088.77/1,187,180.48
  6. Step 6: Final answer
    x = 935,489.45

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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.