Home / 726,512.87-1,089,810.25-221,090.29

Finding the Fourth Proportional to 726,512.87, 1,089,810.25 and 221,090.29

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Solution

The fourth proportional to 726,512.87, 1,089,810.25 and 221,090.29 is: 331,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,512.87 : 1,089,810.25 = 221,090.29 : x
  2. Step 2: Convert to fraction form
    726,512.87/1,089,810.25 = 221,090.29/x
  3. Step 3: Cross multiply
    726,512.87x = 1,089,810.25 × 221,090.29
  4. Step 4: Simplify right side
    726,512.87x = 240,946,460,940.22
  5. Step 5: Solve for x
    x = 240,946,460,940.22/726,512.87
  6. Step 6: Final answer
    x = 331,647.89

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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.