Home / 1,071,866.32-1,606,576.43-431,760.12

Finding the Fourth Proportional to 1,071,866.32, 1,606,576.43 and 431,760.12

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Solution

The fourth proportional to 1,071,866.32, 1,606,576.43 and 431,760.12 is: 647,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,866.32 : 1,606,576.43 = 431,760.12 : x
  2. Step 2: Convert to fraction form
    1,071,866.32/1,606,576.43 = 431,760.12/x
  3. Step 3: Cross multiply
    1,071,866.32x = 1,606,576.43 × 431,760.12
  4. Step 4: Simplify right side
    1,071,866.32x = 693,655,633,869.05
  5. Step 5: Solve for x
    x = 693,655,633,869.05/1,071,866.32
  6. Step 6: Final answer
    x = 647,147.52

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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.