Home / 1,271,007.76-1,906,509.86-324,378.44

Finding the Fourth Proportional to 1,271,007.76, 1,906,509.86 and 324,378.44

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Solution

The fourth proportional to 1,271,007.76, 1,906,509.86 and 324,378.44 is: 486,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,007.76 : 1,906,509.86 = 324,378.44 : x
  2. Step 2: Convert to fraction form
    1,271,007.76/1,906,509.86 = 324,378.44/x
  3. Step 3: Cross multiply
    1,271,007.76x = 1,906,509.86 × 324,378.44
  4. Step 4: Simplify right side
    1,271,007.76x = 618,430,694,231.42
  5. Step 5: Solve for x
    x = 618,430,694,231.42/1,271,007.76
  6. Step 6: Final answer
    x = 486,567.21

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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.