Home / 1,080,648.23-1,491,254.21-621,833.65

Finding the Fourth Proportional to 1,080,648.23, 1,491,254.21 and 621,833.65

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Solution

The fourth proportional to 1,080,648.23, 1,491,254.21 and 621,833.65 is: 858,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,648.23 : 1,491,254.21 = 621,833.65 : x
  2. Step 2: Convert to fraction form
    1,080,648.23/1,491,254.21 = 621,833.65/x
  3. Step 3: Cross multiply
    1,080,648.23x = 1,491,254.21 × 621,833.65
  4. Step 4: Simplify right side
    1,080,648.23x = 927,312,046,308.62
  5. Step 5: Solve for x
    x = 927,312,046,308.62/1,080,648.23
  6. Step 6: Final answer
    x = 858,107.22

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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.