Home / 2,979,268-4,111,355.28-1,621,117.60

Finding the Fourth Proportional to 2,979,268, 4,111,355.28 and 1,621,117.60

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Solution

The fourth proportional to 2,979,268, 4,111,355.28 and 1,621,117.60 is: 2,237,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,268 : 4,111,355.28 = 1,621,117.60 : x
  2. Step 2: Convert to fraction form
    2,979,268/4,111,355.28 = 1,621,117.60/x
  3. Step 3: Cross multiply
    2,979,268x = 4,111,355.28 × 1,621,117.60
  4. Step 4: Simplify right side
    2,979,268x = 6,664,990,404,260.93
  5. Step 5: Solve for x
    x = 6,664,990,404,260.93/2,979,268
  6. Step 6: Final answer
    x = 2,237,123.48

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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.