Home / 1,521,819.29-2,100,176.64-842,755.79

Finding the Fourth Proportional to 1,521,819.29, 2,100,176.64 and 842,755.79

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Solution

The fourth proportional to 1,521,819.29, 2,100,176.64 and 842,755.79 is: 1,163,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,819.29 : 2,100,176.64 = 842,755.79 : x
  2. Step 2: Convert to fraction form
    1,521,819.29/2,100,176.64 = 842,755.79/x
  3. Step 3: Cross multiply
    1,521,819.29x = 2,100,176.64 × 842,755.79
  4. Step 4: Simplify right side
    1,521,819.29x = 1,769,936,028,633.19
  5. Step 5: Solve for x
    x = 1,769,936,028,633.19/1,521,819.29
  6. Step 6: Final answer
    x = 1,163,039.55

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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.