Home / 1,427,834.86-2,141,759.66-481,213.78

Finding the Fourth Proportional to 1,427,834.86, 2,141,759.66 and 481,213.78

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Solution

The fourth proportional to 1,427,834.86, 2,141,759.66 and 481,213.78 is: 721,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,834.86 : 2,141,759.66 = 481,213.78 : x
  2. Step 2: Convert to fraction form
    1,427,834.86/2,141,759.66 = 481,213.78/x
  3. Step 3: Cross multiply
    1,427,834.86x = 2,141,759.66 × 481,213.78
  4. Step 4: Simplify right side
    1,427,834.86x = 1,030,644,261,840.12
  5. Step 5: Solve for x
    x = 1,030,644,261,840.12/1,427,834.86
  6. Step 6: Final answer
    x = 721,823.15

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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.