Home / 1,947,855.20-2,919,795.60-1,316,832.80

Finding the Fourth Proportional to 1,947,855.20, 2,919,795.60 and 1,316,832.80

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Solution

The fourth proportional to 1,947,855.20, 2,919,795.60 and 1,316,832.80 is: 1,973,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,855.20 : 2,919,795.60 = 1,316,832.80 : x
  2. Step 2: Convert to fraction form
    1,947,855.20/2,919,795.60 = 1,316,832.80/x
  3. Step 3: Cross multiply
    1,947,855.20x = 2,919,795.60 × 1,316,832.80
  4. Step 4: Simplify right side
    1,947,855.20x = 3,844,882,615,375.68
  5. Step 5: Solve for x
    x = 3,844,882,615,375.68/1,947,855.20
  6. Step 6: Final answer
    x = 1,973,905.77

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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.