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Finding the Fourth Proportional to 1,370,844.73, 1,891,824.83 and 758,997.47

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Solution

The fourth proportional to 1,370,844.73, 1,891,824.83 and 758,997.47 is: 1,047,449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,844.73 : 1,891,824.83 = 758,997.47 : x
  2. Step 2: Convert to fraction form
    1,370,844.73/1,891,824.83 = 758,997.47/x
  3. Step 3: Cross multiply
    1,370,844.73x = 1,891,824.83 × 758,997.47
  4. Step 4: Simplify right side
    1,370,844.73x = 1,435,890,256,339.65
  5. Step 5: Solve for x
    x = 1,435,890,256,339.65/1,370,844.73
  6. Step 6: Final answer
    x = 1,047,449.23

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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.