Home / 2,958,861.72-4,438,336.32-828,811.20

Finding the Fourth Proportional to 2,958,861.72, 4,438,336.32 and 828,811.20

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Solution

The fourth proportional to 2,958,861.72, 4,438,336.32 and 828,811.20 is: 1,243,229.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958,861.72 : 4,438,336.32 = 828,811.20 : x
  2. Step 2: Convert to fraction form
    2,958,861.72/4,438,336.32 = 828,811.20/x
  3. Step 3: Cross multiply
    2,958,861.72x = 4,438,336.32 × 828,811.20
  4. Step 4: Simplify right side
    2,958,861.72x = 3,678,542,851,382.78
  5. Step 5: Solve for x
    x = 3,678,542,851,382.78/2,958,861.72
  6. Step 6: Final answer
    x = 1,243,229.05

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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.