Home / 1,280,494.20-1,920,175.50-681,313.32

Finding the Fourth Proportional to 1,280,494.20, 1,920,175.50 and 681,313.32

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Solution

The fourth proportional to 1,280,494.20, 1,920,175.50 and 681,313.32 is: 1,021,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,494.20 : 1,920,175.50 = 681,313.32 : x
  2. Step 2: Convert to fraction form
    1,280,494.20/1,920,175.50 = 681,313.32/x
  3. Step 3: Cross multiply
    1,280,494.20x = 1,920,175.50 × 681,313.32
  4. Step 4: Simplify right side
    1,280,494.20x = 1,308,241,144,887.66
  5. Step 5: Solve for x
    x = 1,308,241,144,887.66/1,280,494.20
  6. Step 6: Final answer
    x = 1,021,668.93

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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.