Home / 764,859.62-1,147,125.40-315,463.92

Finding the Fourth Proportional to 764,859.62, 1,147,125.40 and 315,463.92

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Solution

The fourth proportional to 764,859.62, 1,147,125.40 and 315,463.92 is: 473,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,859.62 : 1,147,125.40 = 315,463.92 : x
  2. Step 2: Convert to fraction form
    764,859.62/1,147,125.40 = 315,463.92/x
  3. Step 3: Cross multiply
    764,859.62x = 1,147,125.40 × 315,463.92
  4. Step 4: Simplify right side
    764,859.62x = 361,876,675,415.57
  5. Step 5: Solve for x
    x = 361,876,675,415.57/764,859.62
  6. Step 6: Final answer
    x = 473,128.23

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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.