Home / 2,639,987.25-3,643,182.41-1,432,763.25

Finding the Fourth Proportional to 2,639,987.25, 3,643,182.41 and 1,432,763.25

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Solution

The fourth proportional to 2,639,987.25, 3,643,182.41 and 1,432,763.25 is: 1,977,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,987.25 : 3,643,182.41 = 1,432,763.25 : x
  2. Step 2: Convert to fraction form
    2,639,987.25/3,643,182.41 = 1,432,763.25/x
  3. Step 3: Cross multiply
    2,639,987.25x = 3,643,182.41 × 1,432,763.25
  4. Step 4: Simplify right side
    2,639,987.25x = 5,219,817,862,930.62
  5. Step 5: Solve for x
    x = 5,219,817,862,930.62/2,639,987.25
  6. Step 6: Final answer
    x = 1,977,213.29

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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.