Home / 1,993,205.96-2,990,285.26-645,370.10

Finding the Fourth Proportional to 1,993,205.96, 2,990,285.26 and 645,370.10

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Solution

The fourth proportional to 1,993,205.96, 2,990,285.26 and 645,370.10 is: 968,209.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,205.96 : 2,990,285.26 = 645,370.10 : x
  2. Step 2: Convert to fraction form
    1,993,205.96/2,990,285.26 = 645,370.10/x
  3. Step 3: Cross multiply
    1,993,205.96x = 2,990,285.26 × 645,370.10
  4. Step 4: Simplify right side
    1,993,205.96x = 1,929,840,697,274.73
  5. Step 5: Solve for x
    x = 1,929,840,697,274.73/1,993,205.96
  6. Step 6: Final answer
    x = 968,209.38

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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.