Home / 1,328,091.40-1,992,137.10-330,819.40

Finding the Fourth Proportional to 1,328,091.40, 1,992,137.10 and 330,819.40

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Solution

The fourth proportional to 1,328,091.40, 1,992,137.10 and 330,819.40 is: 496,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,091.40 : 1,992,137.10 = 330,819.40 : x
  2. Step 2: Convert to fraction form
    1,328,091.40/1,992,137.10 = 330,819.40/x
  3. Step 3: Cross multiply
    1,328,091.40x = 1,992,137.10 × 330,819.40
  4. Step 4: Simplify right side
    1,328,091.40x = 659,037,600,139.74
  5. Step 5: Solve for x
    x = 659,037,600,139.74/1,328,091.40
  6. Step 6: Final answer
    x = 496,229.10

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Double scale
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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.