Home / 486,080.40-727,954.20-236,470.80

Finding the Fourth Proportional to 486,080.40, 727,954.20 and 236,470.80

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Solution

The fourth proportional to 486,080.40, 727,954.20 and 236,470.80 is: 354,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,080.40 : 727,954.20 = 236,470.80 : x
  2. Step 2: Convert to fraction form
    486,080.40/727,954.20 = 236,470.80/x
  3. Step 3: Cross multiply
    486,080.40x = 727,954.20 × 236,470.80
  4. Step 4: Simplify right side
    486,080.40x = 172,139,912,037.36
  5. Step 5: Solve for x
    x = 172,139,912,037.36/486,080.40
  6. Step 6: Final answer
    x = 354,138.76

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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.