Home / 726,751.88-1,090,132.68-253,435.40

Finding the Fourth Proportional to 726,751.88, 1,090,132.68 and 253,435.40

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Solution

The fourth proportional to 726,751.88, 1,090,132.68 and 253,435.40 is: 380,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,751.88 : 1,090,132.68 = 253,435.40 : x
  2. Step 2: Convert to fraction form
    726,751.88/1,090,132.68 = 253,435.40/x
  3. Step 3: Cross multiply
    726,751.88x = 1,090,132.68 × 253,435.40
  4. Step 4: Simplify right side
    726,751.88x = 276,278,211,808.87
  5. Step 5: Solve for x
    x = 276,278,211,808.87/726,751.88
  6. Step 6: Final answer
    x = 380,154.79

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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.