Home / 2,578,039.11-3,867,255.54-781,071.48

Finding the Fourth Proportional to 2,578,039.11, 3,867,255.54 and 781,071.48

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Solution

The fourth proportional to 2,578,039.11, 3,867,255.54 and 781,071.48 is: 1,171,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,039.11 : 3,867,255.54 = 781,071.48 : x
  2. Step 2: Convert to fraction form
    2,578,039.11/3,867,255.54 = 781,071.48/x
  3. Step 3: Cross multiply
    2,578,039.11x = 3,867,255.54 × 781,071.48
  4. Step 4: Simplify right side
    2,578,039.11x = 3,020,603,008,166.00
  5. Step 5: Solve for x
    x = 3,020,603,008,166.00/2,578,039.11
  6. Step 6: Final answer
    x = 1,171,666.87

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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.