Home / 1,379,172.20-2,064,092.70-1,211,210.60

Finding the Fourth Proportional to 1,379,172.20, 2,064,092.70 and 1,211,210.60

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Solution

The fourth proportional to 1,379,172.20, 2,064,092.70 and 1,211,210.60 is: 1,812,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,172.20 : 2,064,092.70 = 1,211,210.60 : x
  2. Step 2: Convert to fraction form
    1,379,172.20/2,064,092.70 = 1,211,210.60/x
  3. Step 3: Cross multiply
    1,379,172.20x = 2,064,092.70 × 1,211,210.60
  4. Step 4: Simplify right side
    1,379,172.20x = 2,500,050,957,622.62
  5. Step 5: Solve for x
    x = 2,500,050,957,622.62/1,379,172.20
  6. Step 6: Final answer
    x = 1,812,718.50

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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.