Home / 1,780,060.91-2,455,879.78-1,005,578.60

Finding the Fourth Proportional to 1,780,060.91, 2,455,879.78 and 1,005,578.60

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Solution

The fourth proportional to 1,780,060.91, 2,455,879.78 and 1,005,578.60 is: 1,387,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,060.91 : 2,455,879.78 = 1,005,578.60 : x
  2. Step 2: Convert to fraction form
    1,780,060.91/2,455,879.78 = 1,005,578.60/x
  3. Step 3: Cross multiply
    1,780,060.91x = 2,455,879.78 × 1,005,578.60
  4. Step 4: Simplify right side
    1,780,060.91x = 2,469,580,133,633.42
  5. Step 5: Solve for x
    x = 2,469,580,133,633.42/1,780,060.91
  6. Step 6: Final answer
    x = 1,387,357.10

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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.