Home / 1,994,021.28-2,990,736.27-646,302.78

Finding the Fourth Proportional to 1,994,021.28, 2,990,736.27 and 646,302.78

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Solution

The fourth proportional to 1,994,021.28, 2,990,736.27 and 646,302.78 is: 969,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,021.28 : 2,990,736.27 = 646,302.78 : x
  2. Step 2: Convert to fraction form
    1,994,021.28/2,990,736.27 = 646,302.78/x
  3. Step 3: Cross multiply
    1,994,021.28x = 2,990,736.27 × 646,302.78
  4. Step 4: Simplify right side
    1,994,021.28x = 1,932,921,165,547.83
  5. Step 5: Solve for x
    x = 1,932,921,165,547.83/1,994,021.28
  6. Step 6: Final answer
    x = 969,358.34

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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.