Home / 2,143,678.86-3,211,338.60-1,194,190.38

Finding the Fourth Proportional to 2,143,678.86, 3,211,338.60 and 1,194,190.38

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Solution

The fourth proportional to 2,143,678.86, 3,211,338.60 and 1,194,190.38 is: 1,788,957.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,678.86 : 3,211,338.60 = 1,194,190.38 : x
  2. Step 2: Convert to fraction form
    2,143,678.86/3,211,338.60 = 1,194,190.38/x
  3. Step 3: Cross multiply
    2,143,678.86x = 3,211,338.60 × 1,194,190.38
  4. Step 4: Simplify right side
    2,143,678.86x = 3,834,949,663,042.67
  5. Step 5: Solve for x
    x = 3,834,949,663,042.67/2,143,678.86
  6. Step 6: Final answer
    x = 1,788,957.17

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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.