Home / 1,639,394.40-2,456,467.20-1,077,772.80

Finding the Fourth Proportional to 1,639,394.40, 2,456,467.20 and 1,077,772.80

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Solution

The fourth proportional to 1,639,394.40, 2,456,467.20 and 1,077,772.80 is: 1,614,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,394.40 : 2,456,467.20 = 1,077,772.80 : x
  2. Step 2: Convert to fraction form
    1,639,394.40/2,456,467.20 = 1,077,772.80/x
  3. Step 3: Cross multiply
    1,639,394.40x = 2,456,467.20 × 1,077,772.80
  4. Step 4: Simplify right side
    1,639,394.40x = 2,647,513,532,252.16
  5. Step 5: Solve for x
    x = 2,647,513,532,252.16/1,639,394.40
  6. Step 6: Final answer
    x = 1,614,933.86

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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.