Home / 1,190,331.69-1,642,919.30-782,471.22

Finding the Fourth Proportional to 1,190,331.69, 1,642,919.30 and 782,471.22

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Solution

The fourth proportional to 1,190,331.69, 1,642,919.30 and 782,471.22 is: 1,079,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,331.69 : 1,642,919.30 = 782,471.22 : x
  2. Step 2: Convert to fraction form
    1,190,331.69/1,642,919.30 = 782,471.22/x
  3. Step 3: Cross multiply
    1,190,331.69x = 1,642,919.30 × 782,471.22
  4. Step 4: Simplify right side
    1,190,331.69x = 1,285,537,065,120.19
  5. Step 5: Solve for x
    x = 1,285,537,065,120.19/1,190,331.69
  6. Step 6: Final answer
    x = 1,079,982.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.