Home / 2,660,808.30-3,991,212.45-1,821,000.30

Finding the Fourth Proportional to 2,660,808.30, 3,991,212.45 and 1,821,000.30

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Solution

The fourth proportional to 2,660,808.30, 3,991,212.45 and 1,821,000.30 is: 2,731,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,808.30 : 3,991,212.45 = 1,821,000.30 : x
  2. Step 2: Convert to fraction form
    2,660,808.30/3,991,212.45 = 1,821,000.30/x
  3. Step 3: Cross multiply
    2,660,808.30x = 3,991,212.45 × 1,821,000.30
  4. Step 4: Simplify right side
    2,660,808.30x = 7,267,999,068,813.74
  5. Step 5: Solve for x
    x = 7,267,999,068,813.74/2,660,808.30
  6. Step 6: Final answer
    x = 2,731,500.45

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Double scale
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Similar ratio
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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.