Home / 2,578,546.50-3,867,390.78-781,002.60

Finding the Fourth Proportional to 2,578,546.50, 3,867,390.78 and 781,002.60

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Solution

The fourth proportional to 2,578,546.50, 3,867,390.78 and 781,002.60 is: 1,171,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,546.50 : 3,867,390.78 = 781,002.60 : x
  2. Step 2: Convert to fraction form
    2,578,546.50/3,867,390.78 = 781,002.60/x
  3. Step 3: Cross multiply
    2,578,546.50x = 3,867,390.78 × 781,002.60
  4. Step 4: Simplify right side
    2,578,546.50x = 3,020,442,254,396.03
  5. Step 5: Solve for x
    x = 3,020,442,254,396.03/2,578,546.50
  6. Step 6: Final answer
    x = 1,171,373.97

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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.