Home / 1,940,922.68-2,911,656.24-678,463.16

Finding the Fourth Proportional to 1,940,922.68, 2,911,656.24 and 678,463.16

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Solution

The fourth proportional to 1,940,922.68, 2,911,656.24 and 678,463.16 is: 1,017,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,922.68 : 2,911,656.24 = 678,463.16 : x
  2. Step 2: Convert to fraction form
    1,940,922.68/2,911,656.24 = 678,463.16/x
  3. Step 3: Cross multiply
    1,940,922.68x = 2,911,656.24 × 678,463.16
  4. Step 4: Simplify right side
    1,940,922.68x = 1,975,451,493,424.12
  5. Step 5: Solve for x
    x = 1,975,451,493,424.12/1,940,922.68
  6. Step 6: Final answer
    x = 1,017,789.90

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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.