Home / 1,907,287.46-2,631,147.22-1,389,932.18

Finding the Fourth Proportional to 1,907,287.46, 2,631,147.22 and 1,389,932.18

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Solution

The fourth proportional to 1,907,287.46, 2,631,147.22 and 1,389,932.18 is: 1,917,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907,287.46 : 2,631,147.22 = 1,389,932.18 : x
  2. Step 2: Convert to fraction form
    1,907,287.46/2,631,147.22 = 1,389,932.18/x
  3. Step 3: Cross multiply
    1,907,287.46x = 2,631,147.22 × 1,389,932.18
  4. Step 4: Simplify right side
    1,907,287.46x = 3,657,116,174,764.97
  5. Step 5: Solve for x
    x = 3,657,116,174,764.97/1,907,287.46
  6. Step 6: Final answer
    x = 1,917,443.63

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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.