Home / 1,905,664.59-2,855,973.69-1,397,847.78

Finding the Fourth Proportional to 1,905,664.59, 2,855,973.69 and 1,397,847.78

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Solution

The fourth proportional to 1,905,664.59, 2,855,973.69 and 1,397,847.78 is: 2,094,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,664.59 : 2,855,973.69 = 1,397,847.78 : x
  2. Step 2: Convert to fraction form
    1,905,664.59/2,855,973.69 = 1,397,847.78/x
  3. Step 3: Cross multiply
    1,905,664.59x = 2,855,973.69 × 1,397,847.78
  4. Step 4: Simplify right side
    1,905,664.59x = 3,992,216,482,304.91
  5. Step 5: Solve for x
    x = 3,992,216,482,304.91/1,905,664.59
  6. Step 6: Final answer
    x = 2,094,920.85

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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.