Home / 1,388,718.20-2,081,522.10-789,966.20

Finding the Fourth Proportional to 1,388,718.20, 2,081,522.10 and 789,966.20

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Solution

The fourth proportional to 1,388,718.20, 2,081,522.10 and 789,966.20 is: 1,184,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,718.20 : 2,081,522.10 = 789,966.20 : x
  2. Step 2: Convert to fraction form
    1,388,718.20/2,081,522.10 = 789,966.20/x
  3. Step 3: Cross multiply
    1,388,718.20x = 2,081,522.10 × 789,966.20
  4. Step 4: Simplify right side
    1,388,718.20x = 1,644,332,103,553.02
  5. Step 5: Solve for x
    x = 1,644,332,103,553.02/1,388,718.20
  6. Step 6: Final answer
    x = 1,184,064.63

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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.