Home / 1,338,302.20-2,006,789.10-485,339.80

Finding the Fourth Proportional to 1,338,302.20, 2,006,789.10 and 485,339.80

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Solution

The fourth proportional to 1,338,302.20, 2,006,789.10 and 485,339.80 is: 727,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,302.20 : 2,006,789.10 = 485,339.80 : x
  2. Step 2: Convert to fraction form
    1,338,302.20/2,006,789.10 = 485,339.80/x
  3. Step 3: Cross multiply
    1,338,302.20x = 2,006,789.10 × 485,339.80
  4. Step 4: Simplify right side
    1,338,302.20x = 973,974,620,436.18
  5. Step 5: Solve for x
    x = 973,974,620,436.18/1,338,302.20
  6. Step 6: Final answer
    x = 727,768.83

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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.