Home / 1,278,674.19-1,918,327.02-380,112.12

Finding the Fourth Proportional to 1,278,674.19, 1,918,327.02 and 380,112.12

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Solution

The fourth proportional to 1,278,674.19, 1,918,327.02 and 380,112.12 is: 570,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,674.19 : 1,918,327.02 = 380,112.12 : x
  2. Step 2: Convert to fraction form
    1,278,674.19/1,918,327.02 = 380,112.12/x
  3. Step 3: Cross multiply
    1,278,674.19x = 1,918,327.02 × 380,112.12
  4. Step 4: Simplify right side
    1,278,674.19x = 729,179,350,425.48
  5. Step 5: Solve for x
    x = 729,179,350,425.48/1,278,674.19
  6. Step 6: Final answer
    x = 570,262.04

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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.