Home / 1,639,579.85-2,456,076.05-816,438.59

Finding the Fourth Proportional to 1,639,579.85, 2,456,076.05 and 816,438.59

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Solution

The fourth proportional to 1,639,579.85, 2,456,076.05 and 816,438.59 is: 1,223,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,579.85 : 2,456,076.05 = 816,438.59 : x
  2. Step 2: Convert to fraction form
    1,639,579.85/2,456,076.05 = 816,438.59/x
  3. Step 3: Cross multiply
    1,639,579.85x = 2,456,076.05 × 816,438.59
  4. Step 4: Simplify right side
    1,639,579.85x = 2,005,235,254,914.39
  5. Step 5: Solve for x
    x = 2,005,235,254,914.39/1,639,579.85
  6. Step 6: Final answer
    x = 1,223,017.75

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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.