Home / 986,961.60-1,479,794.40-387,561.60

Finding the Fourth Proportional to 986,961.60, 1,479,794.40 and 387,561.60

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Solution

The fourth proportional to 986,961.60, 1,479,794.40 and 387,561.60 is: 581,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,961.60 : 1,479,794.40 = 387,561.60 : x
  2. Step 2: Convert to fraction form
    986,961.60/1,479,794.40 = 387,561.60/x
  3. Step 3: Cross multiply
    986,961.60x = 1,479,794.40 × 387,561.60
  4. Step 4: Simplify right side
    986,961.60x = 573,511,485,335.04
  5. Step 5: Solve for x
    x = 573,511,485,335.04/986,961.60
  6. Step 6: Final answer
    x = 581,087.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.