Home / 3,120,485.70-4,680,728.55-1,523,295.30

Finding the Fourth Proportional to 3,120,485.70, 4,680,728.55 and 1,523,295.30

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Solution

The fourth proportional to 3,120,485.70, 4,680,728.55 and 1,523,295.30 is: 2,284,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,485.70 : 4,680,728.55 = 1,523,295.30 : x
  2. Step 2: Convert to fraction form
    3,120,485.70/4,680,728.55 = 1,523,295.30/x
  3. Step 3: Cross multiply
    3,120,485.70x = 4,680,728.55 × 1,523,295.30
  4. Step 4: Simplify right side
    3,120,485.70x = 7,130,131,800,790.82
  5. Step 5: Solve for x
    x = 7,130,131,800,790.82/3,120,485.70
  6. Step 6: Final answer
    x = 2,284,942.95

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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.