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Finding the Fourth Proportional to 2,664,883.80, 3,991,420.80 and 2,063,896.20

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Solution

The fourth proportional to 2,664,883.80, 3,991,420.80 and 2,063,896.20 is: 3,091,271.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664,883.80 : 3,991,420.80 = 2,063,896.20 : x
  2. Step 2: Convert to fraction form
    2,664,883.80/3,991,420.80 = 2,063,896.20/x
  3. Step 3: Cross multiply
    2,664,883.80x = 3,991,420.80 × 2,063,896.20
  4. Step 4: Simplify right side
    2,664,883.80x = 8,237,878,221,720.96
  5. Step 5: Solve for x
    x = 8,237,878,221,720.96/2,664,883.80
  6. Step 6: Final answer
    x = 3,091,271.08

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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.