Home / 842,894.40-1,261,231.20-768,244.80

Finding the Fourth Proportional to 842,894.40, 1,261,231.20 and 768,244.80

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Solution

The fourth proportional to 842,894.40, 1,261,231.20 and 768,244.80 is: 1,149,532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,894.40 : 1,261,231.20 = 768,244.80 : x
  2. Step 2: Convert to fraction form
    842,894.40/1,261,231.20 = 768,244.80/x
  3. Step 3: Cross multiply
    842,894.40x = 1,261,231.20 × 768,244.80
  4. Step 4: Simplify right side
    842,894.40x = 968,934,310,997.76
  5. Step 5: Solve for x
    x = 968,934,310,997.76/842,894.40
  6. Step 6: Final answer
    x = 1,149,532.27

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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.