Home / 890,820.80-1,336,231.20-225,972.80

Finding the Fourth Proportional to 890,820.80, 1,336,231.20 and 225,972.80

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Solution

The fourth proportional to 890,820.80, 1,336,231.20 and 225,972.80 is: 338,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,820.80 : 1,336,231.20 = 225,972.80 : x
  2. Step 2: Convert to fraction form
    890,820.80/1,336,231.20 = 225,972.80/x
  3. Step 3: Cross multiply
    890,820.80x = 1,336,231.20 × 225,972.80
  4. Step 4: Simplify right side
    890,820.80x = 301,951,905,711.36
  5. Step 5: Solve for x
    x = 301,951,905,711.36/890,820.80
  6. Step 6: Final answer
    x = 338,959.20

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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.