Home / 990,595.96-1,485,920.58-280,550.68

Finding the Fourth Proportional to 990,595.96, 1,485,920.58 and 280,550.68

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Solution

The fourth proportional to 990,595.96, 1,485,920.58 and 280,550.68 is: 420,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,595.96 : 1,485,920.58 = 280,550.68 : x
  2. Step 2: Convert to fraction form
    990,595.96/1,485,920.58 = 280,550.68/x
  3. Step 3: Cross multiply
    990,595.96x = 1,485,920.58 × 280,550.68
  4. Step 4: Simplify right side
    990,595.96x = 416,876,029,144.99
  5. Step 5: Solve for x
    x = 416,876,029,144.99/990,595.96
  6. Step 6: Final answer
    x = 420,833.56

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1.5x scale

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.