Home / 764,379.57-1,146,707.26-314,855.09

Finding the Fourth Proportional to 764,379.57, 1,146,707.26 and 314,855.09

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Solution

The fourth proportional to 764,379.57, 1,146,707.26 and 314,855.09 is: 472,339.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,379.57 : 1,146,707.26 = 314,855.09 : x
  2. Step 2: Convert to fraction form
    764,379.57/1,146,707.26 = 314,855.09/x
  3. Step 3: Cross multiply
    764,379.57x = 1,146,707.26 × 314,855.09
  4. Step 4: Simplify right side
    764,379.57x = 361,046,611,030.28
  5. Step 5: Solve for x
    x = 361,046,611,030.28/764,379.57
  6. Step 6: Final answer
    x = 472,339.43

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1.5x scale

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.