Home / 1,970,255.49-2,951,106.32-1,209,788.61

Finding the Fourth Proportional to 1,970,255.49, 2,951,106.32 and 1,209,788.61

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Solution

The fourth proportional to 1,970,255.49, 2,951,106.32 and 1,209,788.61 is: 1,812,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,255.49 : 2,951,106.32 = 1,209,788.61 : x
  2. Step 2: Convert to fraction form
    1,970,255.49/2,951,106.32 = 1,209,788.61/x
  3. Step 3: Cross multiply
    1,970,255.49x = 2,951,106.32 × 1,209,788.61
  4. Step 4: Simplify right side
    1,970,255.49x = 3,570,214,806,786.07
  5. Step 5: Solve for x
    x = 3,570,214,806,786.07/1,970,255.49
  6. Step 6: Final answer
    x = 1,812,056.77

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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.