Home / 2,122,908.76-2,929,584.93-1,205,129.89

Finding the Fourth Proportional to 2,122,908.76, 2,929,584.93 and 1,205,129.89

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Solution

The fourth proportional to 2,122,908.76, 2,929,584.93 and 1,205,129.89 is: 1,663,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122,908.76 : 2,929,584.93 = 1,205,129.89 : x
  2. Step 2: Convert to fraction form
    2,122,908.76/2,929,584.93 = 1,205,129.89/x
  3. Step 3: Cross multiply
    2,122,908.76x = 2,929,584.93 × 1,205,129.89
  4. Step 4: Simplify right side
    2,122,908.76x = 3,530,530,364,436.56
  5. Step 5: Solve for x
    x = 3,530,530,364,436.56/2,122,908.76
  6. Step 6: Final answer
    x = 1,663,062.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.