Home / 726,446.10-1,089,669.15-693,786.90

Finding the Fourth Proportional to 726,446.10, 1,089,669.15 and 693,786.90

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Solution

The fourth proportional to 726,446.10, 1,089,669.15 and 693,786.90 is: 1,040,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,446.10 : 1,089,669.15 = 693,786.90 : x
  2. Step 2: Convert to fraction form
    726,446.10/1,089,669.15 = 693,786.90/x
  3. Step 3: Cross multiply
    726,446.10x = 1,089,669.15 × 693,786.90
  4. Step 4: Simplify right side
    726,446.10x = 755,998,181,604.14
  5. Step 5: Solve for x
    x = 755,998,181,604.14/726,446.10
  6. Step 6: Final answer
    x = 1,040,680.35

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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.