Home / 1,355,892.78-1,870,668.58-774,698.90

Finding the Fourth Proportional to 1,355,892.78, 1,870,668.58 and 774,698.90

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Solution

The fourth proportional to 1,355,892.78, 1,870,668.58 and 774,698.90 is: 1,068,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,892.78 : 1,870,668.58 = 774,698.90 : x
  2. Step 2: Convert to fraction form
    1,355,892.78/1,870,668.58 = 774,698.90/x
  3. Step 3: Cross multiply
    1,355,892.78x = 1,870,668.58 × 774,698.90
  4. Step 4: Simplify right side
    1,355,892.78x = 1,449,204,891,190.56
  5. Step 5: Solve for x
    x = 1,449,204,891,190.56/1,355,892.78
  6. Step 6: Final answer
    x = 1,068,819.68

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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.