Home / 726,513.13-1,089,810.63-221,090.55

Finding the Fourth Proportional to 726,513.13, 1,089,810.63 and 221,090.55

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Solution

The fourth proportional to 726,513.13, 1,089,810.63 and 221,090.55 is: 331,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,513.13 : 1,089,810.63 = 221,090.55 : x
  2. Step 2: Convert to fraction form
    726,513.13/1,089,810.63 = 221,090.55/x
  3. Step 3: Cross multiply
    726,513.13x = 1,089,810.63 × 221,090.55
  4. Step 4: Simplify right side
    726,513.13x = 240,946,831,582.55
  5. Step 5: Solve for x
    x = 240,946,831,582.55/726,513.13
  6. Step 6: Final answer
    x = 331,648.28

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1.5x scale

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.