Home / 2,979,110.78-4,111,051.82-1,689,923.49

Finding the Fourth Proportional to 2,979,110.78, 4,111,051.82 and 1,689,923.49

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Solution

The fourth proportional to 2,979,110.78, 4,111,051.82 and 1,689,923.49 is: 2,332,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,110.78 : 4,111,051.82 = 1,689,923.49 : x
  2. Step 2: Convert to fraction form
    2,979,110.78/4,111,051.82 = 1,689,923.49/x
  3. Step 3: Cross multiply
    2,979,110.78x = 4,111,051.82 × 1,689,923.49
  4. Step 4: Simplify right side
    2,979,110.78x = 6,947,363,039,225.25
  5. Step 5: Solve for x
    x = 6,947,363,039,225.25/2,979,110.78
  6. Step 6: Final answer
    x = 2,332,025.75

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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.