Home / 1,190,379.92-1,642,736.09-646,520.87

Finding the Fourth Proportional to 1,190,379.92, 1,642,736.09 and 646,520.87

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Solution

The fourth proportional to 1,190,379.92, 1,642,736.09 and 646,520.87 is: 892,205.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,379.92 : 1,642,736.09 = 646,520.87 : x
  2. Step 2: Convert to fraction form
    1,190,379.92/1,642,736.09 = 646,520.87/x
  3. Step 3: Cross multiply
    1,190,379.92x = 1,642,736.09 × 646,520.87
  4. Step 4: Simplify right side
    1,190,379.92x = 1,062,063,171,810.34
  5. Step 5: Solve for x
    x = 1,062,063,171,810.34/1,190,379.92
  6. Step 6: Final answer
    x = 892,205.22

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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.