Home / 1,912,458.86-2,639,290.20-1,085,590.64

Finding the Fourth Proportional to 1,912,458.86, 2,639,290.20 and 1,085,590.64

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Solution

The fourth proportional to 1,912,458.86, 2,639,290.20 and 1,085,590.64 is: 1,498,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,458.86 : 2,639,290.20 = 1,085,590.64 : x
  2. Step 2: Convert to fraction form
    1,912,458.86/2,639,290.20 = 1,085,590.64/x
  3. Step 3: Cross multiply
    1,912,458.86x = 2,639,290.20 × 1,085,590.64
  4. Step 4: Simplify right side
    1,912,458.86x = 2,865,188,737,363.73
  5. Step 5: Solve for x
    x = 2,865,188,737,363.73/1,912,458.86
  6. Step 6: Final answer
    x = 1,498,170.13

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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.