Home / 780,228.15-1,170,633.83-307,243.23

Finding the Fourth Proportional to 780,228.15, 1,170,633.83 and 307,243.23

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Solution

The fourth proportional to 780,228.15, 1,170,633.83 and 307,243.23 is: 460,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,228.15 : 1,170,633.83 = 307,243.23 : x
  2. Step 2: Convert to fraction form
    780,228.15/1,170,633.83 = 307,243.23/x
  3. Step 3: Cross multiply
    780,228.15x = 1,170,633.83 × 307,243.23
  4. Step 4: Simplify right side
    780,228.15x = 359,669,317,540.26
  5. Step 5: Solve for x
    x = 359,669,317,540.26/780,228.15
  6. Step 6: Final answer
    x = 460,979.67

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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.