Home / 1,122,694.12-1,682,046.15-642,902.77

Finding the Fourth Proportional to 1,122,694.12, 1,682,046.15 and 642,902.77

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Solution

The fourth proportional to 1,122,694.12, 1,682,046.15 and 642,902.77 is: 963,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,694.12 : 1,682,046.15 = 642,902.77 : x
  2. Step 2: Convert to fraction form
    1,122,694.12/1,682,046.15 = 642,902.77/x
  3. Step 3: Cross multiply
    1,122,694.12x = 1,682,046.15 × 642,902.77
  4. Step 4: Simplify right side
    1,122,694.12x = 1,081,392,132,410.84
  5. Step 5: Solve for x
    x = 1,081,392,132,410.84/1,122,694.12
  6. Step 6: Final answer
    x = 963,211.72

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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.