Home / 764,628.93-1,147,081.30-315,099.59

Finding the Fourth Proportional to 764,628.93, 1,147,081.30 and 315,099.59

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Solution

The fourth proportional to 764,628.93, 1,147,081.30 and 315,099.59 is: 472,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,628.93 : 1,147,081.30 = 315,099.59 : x
  2. Step 2: Convert to fraction form
    764,628.93/1,147,081.30 = 315,099.59/x
  3. Step 3: Cross multiply
    764,628.93x = 1,147,081.30 × 315,099.59
  4. Step 4: Simplify right side
    764,628.93x = 361,444,847,326.67
  5. Step 5: Solve for x
    x = 361,444,847,326.67/764,628.93
  6. Step 6: Final answer
    x = 472,706.21

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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.