Home / 2,800,219.50-4,200,329.25-805,675.50

Finding the Fourth Proportional to 2,800,219.50, 4,200,329.25 and 805,675.50

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Solution

The fourth proportional to 2,800,219.50, 4,200,329.25 and 805,675.50 is: 1,208,513.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,219.50 : 4,200,329.25 = 805,675.50 : x
  2. Step 2: Convert to fraction form
    2,800,219.50/4,200,329.25 = 805,675.50/x
  3. Step 3: Cross multiply
    2,800,219.50x = 4,200,329.25 × 805,675.50
  4. Step 4: Simplify right side
    2,800,219.50x = 3,384,102,368,658.38
  5. Step 5: Solve for x
    x = 3,384,102,368,658.38/2,800,219.50
  6. Step 6: Final answer
    x = 1,208,513.25

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Double scale
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Similar ratio
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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.