Home / 1,639,558.09-2,456,043.51-816,416.83

Finding the Fourth Proportional to 1,639,558.09, 2,456,043.51 and 816,416.83

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Solution

The fourth proportional to 1,639,558.09, 2,456,043.51 and 816,416.83 is: 1,222,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,558.09 : 2,456,043.51 = 816,416.83 : x
  2. Step 2: Convert to fraction form
    1,639,558.09/2,456,043.51 = 816,416.83/x
  3. Step 3: Cross multiply
    1,639,558.09x = 2,456,043.51 × 816,416.83
  4. Step 4: Simplify right side
    1,639,558.09x = 2,005,155,261,769.36
  5. Step 5: Solve for x
    x = 2,005,155,261,769.36/1,639,558.09
  6. Step 6: Final answer
    x = 1,222,985.19

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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.