Home / 842,902.40-1,261,243.20-768,252.80

Finding the Fourth Proportional to 842,902.40, 1,261,243.20 and 768,252.80

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Solution

The fourth proportional to 842,902.40, 1,261,243.20 and 768,252.80 is: 1,149,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,902.40 : 1,261,243.20 = 768,252.80 : x
  2. Step 2: Convert to fraction form
    842,902.40/1,261,243.20 = 768,252.80/x
  3. Step 3: Cross multiply
    842,902.40x = 1,261,243.20 × 768,252.80
  4. Step 4: Simplify right side
    842,902.40x = 968,953,619,880.96
  5. Step 5: Solve for x
    x = 968,953,619,880.96/842,902.40
  6. Step 6: Final answer
    x = 1,149,544.27

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1.5x scale

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.