Home / 4,311,511.20-6,467,266.80-1,278,986.40

Finding the Fourth Proportional to 4,311,511.20, 6,467,266.80 and 1,278,986.40

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Solution

The fourth proportional to 4,311,511.20, 6,467,266.80 and 1,278,986.40 is: 1,918,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311,511.20 : 6,467,266.80 = 1,278,986.40 : x
  2. Step 2: Convert to fraction form
    4,311,511.20/6,467,266.80 = 1,278,986.40/x
  3. Step 3: Cross multiply
    4,311,511.20x = 6,467,266.80 × 1,278,986.40
  4. Step 4: Simplify right side
    4,311,511.20x = 8,271,546,282,371.52
  5. Step 5: Solve for x
    x = 8,271,546,282,371.52/4,311,511.20
  6. Step 6: Final answer
    x = 1,918,479.60

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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.