Home / 1,280,600.62-1,921,233.03-681,068.80

Finding the Fourth Proportional to 1,280,600.62, 1,921,233.03 and 681,068.80

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Solution

The fourth proportional to 1,280,600.62, 1,921,233.03 and 681,068.80 is: 1,021,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,600.62 : 1,921,233.03 = 681,068.80 : x
  2. Step 2: Convert to fraction form
    1,280,600.62/1,921,233.03 = 681,068.80/x
  3. Step 3: Cross multiply
    1,280,600.62x = 1,921,233.03 × 681,068.80
  4. Step 4: Simplify right side
    1,280,600.62x = 1,308,491,864,656.30
  5. Step 5: Solve for x
    x = 1,308,491,864,656.30/1,280,600.62
  6. Step 6: Final answer
    x = 1,021,779.82

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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.