Home / 1,288,446.89-1,932,009.24-681,562.77

Finding the Fourth Proportional to 1,288,446.89, 1,932,009.24 and 681,562.77

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Solution

The fourth proportional to 1,288,446.89, 1,932,009.24 and 681,562.77 is: 1,021,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,446.89 : 1,932,009.24 = 681,562.77 : x
  2. Step 2: Convert to fraction form
    1,288,446.89/1,932,009.24 = 681,562.77/x
  3. Step 3: Cross multiply
    1,288,446.89x = 1,932,009.24 × 681,562.77
  4. Step 4: Simplify right side
    1,288,446.89x = 1,316,785,561,183.01
  5. Step 5: Solve for x
    x = 1,316,785,561,183.01/1,288,446.89
  6. Step 6: Final answer
    x = 1,021,994.44

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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.