Home / 2,718,878.90-4,078,054.29-825,636.74

Finding the Fourth Proportional to 2,718,878.90, 4,078,054.29 and 825,636.74

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Solution

The fourth proportional to 2,718,878.90, 4,078,054.29 and 825,636.74 is: 1,238,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718,878.90 : 4,078,054.29 = 825,636.74 : x
  2. Step 2: Convert to fraction form
    2,718,878.90/4,078,054.29 = 825,636.74/x
  3. Step 3: Cross multiply
    2,718,878.90x = 4,078,054.29 × 825,636.74
  4. Step 4: Simplify right side
    2,718,878.90x = 3,366,991,449,538.62
  5. Step 5: Solve for x
    x = 3,366,991,449,538.62/2,718,878.90
  6. Step 6: Final answer
    x = 1,238,374.92

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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.