Home / 1,330,819.12-1,836,568.38-742,132.36

Finding the Fourth Proportional to 1,330,819.12, 1,836,568.38 and 742,132.36

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Solution

The fourth proportional to 1,330,819.12, 1,836,568.38 and 742,132.36 is: 1,024,163.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,819.12 : 1,836,568.38 = 742,132.36 : x
  2. Step 2: Convert to fraction form
    1,330,819.12/1,836,568.38 = 742,132.36/x
  3. Step 3: Cross multiply
    1,330,819.12x = 1,836,568.38 × 742,132.36
  4. Step 4: Simplify right side
    1,330,819.12x = 1,362,976,826,150.78
  5. Step 5: Solve for x
    x = 1,362,976,826,150.78/1,330,819.12
  6. Step 6: Final answer
    x = 1,024,163.84

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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.