Home / 1,645,512.30-2,468,268.45-1,379,791.80

Finding the Fourth Proportional to 1,645,512.30, 2,468,268.45 and 1,379,791.80

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Solution

The fourth proportional to 1,645,512.30, 2,468,268.45 and 1,379,791.80 is: 2,069,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,512.30 : 2,468,268.45 = 1,379,791.80 : x
  2. Step 2: Convert to fraction form
    1,645,512.30/2,468,268.45 = 1,379,791.80/x
  3. Step 3: Cross multiply
    1,645,512.30x = 2,468,268.45 × 1,379,791.80
  4. Step 4: Simplify right side
    1,645,512.30x = 3,405,696,567,508.71
  5. Step 5: Solve for x
    x = 3,405,696,567,508.71/1,645,512.30
  6. Step 6: Final answer
    x = 2,069,687.70

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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.