Home / 1,664,128.80-2,496,193.20-1,639,245.60

Finding the Fourth Proportional to 1,664,128.80, 2,496,193.20 and 1,639,245.60

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Solution

The fourth proportional to 1,664,128.80, 2,496,193.20 and 1,639,245.60 is: 2,458,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,128.80 : 2,496,193.20 = 1,639,245.60 : x
  2. Step 2: Convert to fraction form
    1,664,128.80/2,496,193.20 = 1,639,245.60/x
  3. Step 3: Cross multiply
    1,664,128.80x = 2,496,193.20 × 1,639,245.60
  4. Step 4: Simplify right side
    1,664,128.80x = 4,091,873,719,849.92
  5. Step 5: Solve for x
    x = 4,091,873,719,849.92/1,664,128.80
  6. Step 6: Final answer
    x = 2,458,868.40

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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.