Home / 764,855.58-1,146,441.20-315,329.88

Finding the Fourth Proportional to 764,855.58, 1,146,441.20 and 315,329.88

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Solution

The fourth proportional to 764,855.58, 1,146,441.20 and 315,329.88 is: 472,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,855.58 : 1,146,441.20 = 315,329.88 : x
  2. Step 2: Convert to fraction form
    764,855.58/1,146,441.20 = 315,329.88/x
  3. Step 3: Cross multiply
    764,855.58x = 1,146,441.20 × 315,329.88
  4. Step 4: Simplify right side
    764,855.58x = 361,507,164,446.41
  5. Step 5: Solve for x
    x = 361,507,164,446.41/764,855.58
  6. Step 6: Final answer
    x = 472,647.61

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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.