Home / 1,382,051.86-1,907,296.50-809,276.56

Finding the Fourth Proportional to 1,382,051.86, 1,907,296.50 and 809,276.56

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Solution

The fourth proportional to 1,382,051.86, 1,907,296.50 and 809,276.56 is: 1,116,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,051.86 : 1,907,296.50 = 809,276.56 : x
  2. Step 2: Convert to fraction form
    1,382,051.86/1,907,296.50 = 809,276.56/x
  3. Step 3: Cross multiply
    1,382,051.86x = 1,907,296.50 × 809,276.56
  4. Step 4: Simplify right side
    1,382,051.86x = 1,543,530,350,420.04
  5. Step 5: Solve for x
    x = 1,543,530,350,420.04/1,382,051.86
  6. Step 6: Final answer
    x = 1,116,839.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.