Home / 1,812,266.70-2,718,400.05-1,215,069.90

Finding the Fourth Proportional to 1,812,266.70, 2,718,400.05 and 1,215,069.90

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Solution

The fourth proportional to 1,812,266.70, 2,718,400.05 and 1,215,069.90 is: 1,822,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,266.70 : 2,718,400.05 = 1,215,069.90 : x
  2. Step 2: Convert to fraction form
    1,812,266.70/2,718,400.05 = 1,215,069.90/x
  3. Step 3: Cross multiply
    1,812,266.70x = 2,718,400.05 × 1,215,069.90
  4. Step 4: Simplify right side
    1,812,266.70x = 3,303,046,076,913.49
  5. Step 5: Solve for x
    x = 3,303,046,076,913.49/1,812,266.70
  6. Step 6: Final answer
    x = 1,822,604.85

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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.