Home / 2,165,823.29-2,988,871.38-1,185,745.78

Finding the Fourth Proportional to 2,165,823.29, 2,988,871.38 and 1,185,745.78

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Solution

The fourth proportional to 2,165,823.29, 2,988,871.38 and 1,185,745.78 is: 1,636,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,823.29 : 2,988,871.38 = 1,185,745.78 : x
  2. Step 2: Convert to fraction form
    2,165,823.29/2,988,871.38 = 1,185,745.78/x
  3. Step 3: Cross multiply
    2,165,823.29x = 2,988,871.38 × 1,185,745.78
  4. Step 4: Simplify right side
    2,165,823.29x = 3,544,041,625,797.78
  5. Step 5: Solve for x
    x = 3,544,041,625,797.78/2,165,823.29
  6. Step 6: Final answer
    x = 1,636,348.47

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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.