Home / 1,126,763.20-1,690,255.20-328,052.80

Finding the Fourth Proportional to 1,126,763.20, 1,690,255.20 and 328,052.80

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Solution

The fourth proportional to 1,126,763.20, 1,690,255.20 and 328,052.80 is: 492,111.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,763.20 : 1,690,255.20 = 328,052.80 : x
  2. Step 2: Convert to fraction form
    1,126,763.20/1,690,255.20 = 328,052.80/x
  3. Step 3: Cross multiply
    1,126,763.20x = 1,690,255.20 × 328,052.80
  4. Step 4: Simplify right side
    1,126,763.20x = 554,492,951,074.56
  5. Step 5: Solve for x
    x = 554,492,951,074.56/1,126,763.20
  6. Step 6: Final answer
    x = 492,111.34

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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.