Home / 2,800,206.50-4,200,309.75-805,662.50

Finding the Fourth Proportional to 2,800,206.50, 4,200,309.75 and 805,662.50

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Solution

The fourth proportional to 2,800,206.50, 4,200,309.75 and 805,662.50 is: 1,208,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,206.50 : 4,200,309.75 = 805,662.50 : x
  2. Step 2: Convert to fraction form
    2,800,206.50/4,200,309.75 = 805,662.50/x
  3. Step 3: Cross multiply
    2,800,206.50x = 4,200,309.75 × 805,662.50
  4. Step 4: Simplify right side
    2,800,206.50x = 3,384,032,053,959.38
  5. Step 5: Solve for x
    x = 3,384,032,053,959.38/2,800,206.50
  6. Step 6: Final answer
    x = 1,208,493.75

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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.