Home / 2,778,986.40-4,168,090.80-885,919.20

Finding the Fourth Proportional to 2,778,986.40, 4,168,090.80 and 885,919.20

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Solution

The fourth proportional to 2,778,986.40, 4,168,090.80 and 885,919.20 is: 1,328,754.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,986.40 : 4,168,090.80 = 885,919.20 : x
  2. Step 2: Convert to fraction form
    2,778,986.40/4,168,090.80 = 885,919.20/x
  3. Step 3: Cross multiply
    2,778,986.40x = 4,168,090.80 × 885,919.20
  4. Step 4: Simplify right side
    2,778,986.40x = 3,692,591,667,063.36
  5. Step 5: Solve for x
    x = 3,692,591,667,063.36/2,778,986.40
  6. Step 6: Final answer
    x = 1,328,754.85

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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.