Home / 2,685,679.92-4,028,653.65-766,875.78

Finding the Fourth Proportional to 2,685,679.92, 4,028,653.65 and 766,875.78

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Solution

The fourth proportional to 2,685,679.92, 4,028,653.65 and 766,875.78 is: 1,150,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685,679.92 : 4,028,653.65 = 766,875.78 : x
  2. Step 2: Convert to fraction form
    2,685,679.92/4,028,653.65 = 766,875.78/x
  3. Step 3: Cross multiply
    2,685,679.92x = 4,028,653.65 × 766,875.78
  4. Step 4: Simplify right side
    2,685,679.92x = 3,089,476,910,193.60
  5. Step 5: Solve for x
    x = 3,089,476,910,193.60/2,685,679.92
  6. Step 6: Final answer
    x = 1,150,351.87

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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.