Home / 2,578,281.62-3,867,468.55-781,165.28

Finding the Fourth Proportional to 2,578,281.62, 3,867,468.55 and 781,165.28

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Solution

The fourth proportional to 2,578,281.62, 3,867,468.55 and 781,165.28 is: 1,171,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,281.62 : 3,867,468.55 = 781,165.28 : x
  2. Step 2: Convert to fraction form
    2,578,281.62/3,867,468.55 = 781,165.28/x
  3. Step 3: Cross multiply
    2,578,281.62x = 3,867,468.55 × 781,165.28
  4. Step 4: Simplify right side
    2,578,281.62x = 3,021,132,160,467.70
  5. Step 5: Solve for x
    x = 3,021,132,160,467.70/2,578,281.62
  6. Step 6: Final answer
    x = 1,171,761.90

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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.