Home / 908,390.86-1,362,797.37-309,357.22

Finding the Fourth Proportional to 908,390.86, 1,362,797.37 and 309,357.22

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Solution

The fourth proportional to 908,390.86, 1,362,797.37 and 309,357.22 is: 464,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,390.86 : 1,362,797.37 = 309,357.22 : x
  2. Step 2: Convert to fraction form
    908,390.86/1,362,797.37 = 309,357.22/x
  3. Step 3: Cross multiply
    908,390.86x = 1,362,797.37 × 309,357.22
  4. Step 4: Simplify right side
    908,390.86x = 421,591,202,399.52
  5. Step 5: Solve for x
    x = 421,591,202,399.52/908,390.86
  6. Step 6: Final answer
    x = 464,107.71

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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.