Home / 486,090.40-727,969.20-236,480.80

Finding the Fourth Proportional to 486,090.40, 727,969.20 and 236,480.80

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Solution

The fourth proportional to 486,090.40, 727,969.20 and 236,480.80 is: 354,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,090.40 : 727,969.20 = 236,480.80 : x
  2. Step 2: Convert to fraction form
    486,090.40/727,969.20 = 236,480.80/x
  3. Step 3: Cross multiply
    486,090.40x = 727,969.20 × 236,480.80
  4. Step 4: Simplify right side
    486,090.40x = 172,150,738,791.36
  5. Step 5: Solve for x
    x = 172,150,738,791.36/486,090.40
  6. Step 6: Final answer
    x = 354,153.75

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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.