Home / 1,653,689.59-2,479,568.78-641,629.51

Finding the Fourth Proportional to 1,653,689.59, 2,479,568.78 and 641,629.51

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Solution

The fourth proportional to 1,653,689.59, 2,479,568.78 and 641,629.51 is: 962,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653,689.59 : 2,479,568.78 = 641,629.51 : x
  2. Step 2: Convert to fraction form
    1,653,689.59/2,479,568.78 = 641,629.51/x
  3. Step 3: Cross multiply
    1,653,689.59x = 2,479,568.78 × 641,629.51
  4. Step 4: Simplify right side
    1,653,689.59x = 1,590,964,496,727.85
  5. Step 5: Solve for x
    x = 1,590,964,496,727.85/1,653,689.59
  6. Step 6: Final answer
    x = 962,069.61

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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.