Home / 726,148.22-1,089,379.02-220,749.88

Finding the Fourth Proportional to 726,148.22, 1,089,379.02 and 220,749.88

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Solution

The fourth proportional to 726,148.22, 1,089,379.02 and 220,749.88 is: 331,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,148.22 : 1,089,379.02 = 220,749.88 : x
  2. Step 2: Convert to fraction form
    726,148.22/1,089,379.02 = 220,749.88/x
  3. Step 3: Cross multiply
    726,148.22x = 1,089,379.02 × 220,749.88
  4. Step 4: Simplify right side
    726,148.22x = 240,480,287,939.52
  5. Step 5: Solve for x
    x = 240,480,287,939.52/726,148.22
  6. Step 6: Final answer
    x = 331,172.45

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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.