Home / 1,280,174.75-1,920,538.91-681,048.83

Finding the Fourth Proportional to 1,280,174.75, 1,920,538.91 and 681,048.83

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Solution

The fourth proportional to 1,280,174.75, 1,920,538.91 and 681,048.83 is: 1,021,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,174.75 : 1,920,538.91 = 681,048.83 : x
  2. Step 2: Convert to fraction form
    1,280,174.75/1,920,538.91 = 681,048.83/x
  3. Step 3: Cross multiply
    1,280,174.75x = 1,920,538.91 × 681,048.83
  4. Step 4: Simplify right side
    1,280,174.75x = 1,307,980,764,617.04
  5. Step 5: Solve for x
    x = 1,307,980,764,617.04/1,280,174.75
  6. Step 6: Final answer
    x = 1,021,720.49

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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.