Home / 764,379.45-1,146,707.07-314,854.96

Finding the Fourth Proportional to 764,379.45, 1,146,707.07 and 314,854.96

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Solution

The fourth proportional to 764,379.45, 1,146,707.07 and 314,854.96 is: 472,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,379.45 : 1,146,707.07 = 314,854.96 : x
  2. Step 2: Convert to fraction form
    764,379.45/1,146,707.07 = 314,854.96/x
  3. Step 3: Cross multiply
    764,379.45x = 1,146,707.07 × 314,854.96
  4. Step 4: Simplify right side
    764,379.45x = 361,046,408,656.57
  5. Step 5: Solve for x
    x = 361,046,408,656.57/764,379.45
  6. Step 6: Final answer
    x = 472,339.24

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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.