Home / 726,079.50-1,089,176.76-220,684.32

Finding the Fourth Proportional to 726,079.50, 1,089,176.76 and 220,684.32

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Solution

The fourth proportional to 726,079.50, 1,089,176.76 and 220,684.32 is: 331,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,079.50 : 1,089,176.76 = 220,684.32 : x
  2. Step 2: Convert to fraction form
    726,079.50/1,089,176.76 = 220,684.32/x
  3. Step 3: Cross multiply
    726,079.50x = 1,089,176.76 × 220,684.32
  4. Step 4: Simplify right side
    726,079.50x = 240,364,232,640.40
  5. Step 5: Solve for x
    x = 240,364,232,640.40/726,079.50
  6. Step 6: Final answer
    x = 331,043.96

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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.