Home / 1,974,965.20-2,962,447.80-1,821,000.40

Finding the Fourth Proportional to 1,974,965.20, 2,962,447.80 and 1,821,000.40

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Solution

The fourth proportional to 1,974,965.20, 2,962,447.80 and 1,821,000.40 is: 2,731,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,965.20 : 2,962,447.80 = 1,821,000.40 : x
  2. Step 2: Convert to fraction form
    1,974,965.20/2,962,447.80 = 1,821,000.40/x
  3. Step 3: Cross multiply
    1,974,965.20x = 2,962,447.80 × 1,821,000.40
  4. Step 4: Simplify right side
    1,974,965.20x = 5,394,618,628,779.12
  5. Step 5: Solve for x
    x = 5,394,618,628,779.12/1,974,965.20
  6. Step 6: Final answer
    x = 2,731,500.60

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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.