Home / 3,211,907.90-4,817,861.85-1,320,007.10

Finding the Fourth Proportional to 3,211,907.90, 4,817,861.85 and 1,320,007.10

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Solution

The fourth proportional to 3,211,907.90, 4,817,861.85 and 1,320,007.10 is: 1,980,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211,907.90 : 4,817,861.85 = 1,320,007.10 : x
  2. Step 2: Convert to fraction form
    3,211,907.90/4,817,861.85 = 1,320,007.10/x
  3. Step 3: Cross multiply
    3,211,907.90x = 4,817,861.85 × 1,320,007.10
  4. Step 4: Simplify right side
    3,211,907.90x = 6,359,611,848,819.14
  5. Step 5: Solve for x
    x = 6,359,611,848,819.14/3,211,907.90
  6. Step 6: Final answer
    x = 1,980,010.65

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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.