Home / 1,670,243.20-2,505,352.80-408,059.20

Finding the Fourth Proportional to 1,670,243.20, 2,505,352.80 and 408,059.20

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Solution

The fourth proportional to 1,670,243.20, 2,505,352.80 and 408,059.20 is: 612,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670,243.20 : 2,505,352.80 = 408,059.20 : x
  2. Step 2: Convert to fraction form
    1,670,243.20/2,505,352.80 = 408,059.20/x
  3. Step 3: Cross multiply
    1,670,243.20x = 2,505,352.80 × 408,059.20
  4. Step 4: Simplify right side
    1,670,243.20x = 1,022,332,259,285.76
  5. Step 5: Solve for x
    x = 1,022,332,259,285.76/1,670,243.20
  6. Step 6: Final answer
    x = 612,085.87

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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.