Home / 726,107.20-1,089,679.20-410,228.80

Finding the Fourth Proportional to 726,107.20, 1,089,679.20 and 410,228.80

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Solution

The fourth proportional to 726,107.20, 1,089,679.20 and 410,228.80 is: 615,636.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,107.20 : 1,089,679.20 = 410,228.80 : x
  2. Step 2: Convert to fraction form
    726,107.20/1,089,679.20 = 410,228.80/x
  3. Step 3: Cross multiply
    726,107.20x = 1,089,679.20 × 410,228.80
  4. Step 4: Simplify right side
    726,107.20x = 447,017,790,600.96
  5. Step 5: Solve for x
    x = 447,017,790,600.96/726,107.20
  6. Step 6: Final answer
    x = 615,636.08

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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.