Home / 1,378,738.54-2,068,163.43-480,271.15

Finding the Fourth Proportional to 1,378,738.54, 2,068,163.43 and 480,271.15

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Solution

The fourth proportional to 1,378,738.54, 2,068,163.43 and 480,271.15 is: 720,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,738.54 : 2,068,163.43 = 480,271.15 : x
  2. Step 2: Convert to fraction form
    1,378,738.54/2,068,163.43 = 480,271.15/x
  3. Step 3: Cross multiply
    1,378,738.54x = 2,068,163.43 × 480,271.15
  4. Step 4: Simplify right side
    1,378,738.54x = 993,279,228,914.05
  5. Step 5: Solve for x
    x = 993,279,228,914.05/1,378,738.54
  6. Step 6: Final answer
    x = 720,426.10

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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.