Home / 1,753,351.20-2,631,063.60-1,278,842.40

Finding the Fourth Proportional to 1,753,351.20, 2,631,063.60 and 1,278,842.40

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Solution

The fourth proportional to 1,753,351.20, 2,631,063.60 and 1,278,842.40 is: 1,919,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,351.20 : 2,631,063.60 = 1,278,842.40 : x
  2. Step 2: Convert to fraction form
    1,753,351.20/2,631,063.60 = 1,278,842.40/x
  3. Step 3: Cross multiply
    1,753,351.20x = 2,631,063.60 × 1,278,842.40
  4. Step 4: Simplify right side
    1,753,351.20x = 3,364,715,688,776.64
  5. Step 5: Solve for x
    x = 3,364,715,688,776.64/1,753,351.20
  6. Step 6: Final answer
    x = 1,919,019.81

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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.