Home / 1,670,215.20-2,505,310.80-408,031.20

Finding the Fourth Proportional to 1,670,215.20, 2,505,310.80 and 408,031.20

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Solution

The fourth proportional to 1,670,215.20, 2,505,310.80 and 408,031.20 is: 612,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670,215.20 : 2,505,310.80 = 408,031.20 : x
  2. Step 2: Convert to fraction form
    1,670,215.20/2,505,310.80 = 408,031.20/x
  3. Step 3: Cross multiply
    1,670,215.20x = 2,505,310.80 × 408,031.20
  4. Step 4: Simplify right side
    1,670,215.20x = 1,022,244,972,096.96
  5. Step 5: Solve for x
    x = 1,022,244,972,096.96/1,670,215.20
  6. Step 6: Final answer
    x = 612,043.87

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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.