Home / 986,906.16-1,361,226.24-681,098.40

Finding the Fourth Proportional to 986,906.16, 1,361,226.24 and 681,098.40

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Solution

The fourth proportional to 986,906.16, 1,361,226.24 and 681,098.40 is: 939,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,906.16 : 1,361,226.24 = 681,098.40 : x
  2. Step 2: Convert to fraction form
    986,906.16/1,361,226.24 = 681,098.40/x
  3. Step 3: Cross multiply
    986,906.16x = 1,361,226.24 × 681,098.40
  4. Step 4: Simplify right side
    986,906.16x = 927,129,014,102.02
  5. Step 5: Solve for x
    x = 927,129,014,102.02/986,906.16
  6. Step 6: Final answer
    x = 939,429.76

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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.