Home / 1,367,489.20-2,051,233.80-1,213,961.80

Finding the Fourth Proportional to 1,367,489.20, 2,051,233.80 and 1,213,961.80

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Solution

The fourth proportional to 1,367,489.20, 2,051,233.80 and 1,213,961.80 is: 1,820,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,489.20 : 2,051,233.80 = 1,213,961.80 : x
  2. Step 2: Convert to fraction form
    1,367,489.20/2,051,233.80 = 1,213,961.80/x
  3. Step 3: Cross multiply
    1,367,489.20x = 2,051,233.80 × 1,213,961.80
  4. Step 4: Simplify right side
    1,367,489.20x = 2,490,119,476,068.84
  5. Step 5: Solve for x
    x = 2,490,119,476,068.84/1,367,489.20
  6. Step 6: Final answer
    x = 1,820,942.70

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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.