Home / 1,993,644.60-2,990,904.30-645,577.80

Finding the Fourth Proportional to 1,993,644.60, 2,990,904.30 and 645,577.80

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Solution

The fourth proportional to 1,993,644.60, 2,990,904.30 and 645,577.80 is: 968,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,644.60 : 2,990,904.30 = 645,577.80 : x
  2. Step 2: Convert to fraction form
    1,993,644.60/2,990,904.30 = 645,577.80/x
  3. Step 3: Cross multiply
    1,993,644.60x = 2,990,904.30 × 645,577.80
  4. Step 4: Simplify right side
    1,993,644.60x = 1,930,861,418,004.54
  5. Step 5: Solve for x
    x = 1,930,861,418,004.54/1,993,644.60
  6. Step 6: Final answer
    x = 968,508.34

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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.