Home / 3,521,485.20-5,280,672.60-1,390,861.20

Finding the Fourth Proportional to 3,521,485.20, 5,280,672.60 and 1,390,861.20

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Solution

The fourth proportional to 3,521,485.20, 5,280,672.60 and 1,390,861.20 is: 2,085,677.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521,485.20 : 5,280,672.60 = 1,390,861.20 : x
  2. Step 2: Convert to fraction form
    3,521,485.20/5,280,672.60 = 1,390,861.20/x
  3. Step 3: Cross multiply
    3,521,485.20x = 5,280,672.60 × 1,390,861.20
  4. Step 4: Simplify right side
    3,521,485.20x = 7,344,682,629,243.12
  5. Step 5: Solve for x
    x = 7,344,682,629,243.12/3,521,485.20
  6. Step 6: Final answer
    x = 2,085,677.55

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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.