Home / 1,780,331.15-2,454,878.81-1,289,329.61

Finding the Fourth Proportional to 1,780,331.15, 2,454,878.81 and 1,289,329.61

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Solution

The fourth proportional to 1,780,331.15, 2,454,878.81 and 1,289,329.61 is: 1,777,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,331.15 : 2,454,878.81 = 1,289,329.61 : x
  2. Step 2: Convert to fraction form
    1,780,331.15/2,454,878.81 = 1,289,329.61/x
  3. Step 3: Cross multiply
    1,780,331.15x = 2,454,878.81 × 1,289,329.61
  4. Step 4: Simplify right side
    1,780,331.15x = 3,165,147,929,643.49
  5. Step 5: Solve for x
    x = 3,165,147,929,643.49/1,780,331.15
  6. Step 6: Final answer
    x = 1,777,842.24

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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.