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Finding the Fourth Proportional to 1,398,899.91, 1,930,481.96 and 795,287.91

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Solution

The fourth proportional to 1,398,899.91, 1,930,481.96 and 795,287.91 is: 1,097,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,899.91 : 1,930,481.96 = 795,287.91 : x
  2. Step 2: Convert to fraction form
    1,398,899.91/1,930,481.96 = 795,287.91/x
  3. Step 3: Cross multiply
    1,398,899.91x = 1,930,481.96 × 795,287.91
  4. Step 4: Simplify right side
    1,398,899.91x = 1,535,288,955,596.91
  5. Step 5: Solve for x
    x = 1,535,288,955,596.91/1,398,899.91
  6. Step 6: Final answer
    x = 1,097,497.36

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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.