Home / 856,838.80-1,285,258.20-824,179.60

Finding the Fourth Proportional to 856,838.80, 1,285,258.20 and 824,179.60

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Solution

The fourth proportional to 856,838.80, 1,285,258.20 and 824,179.60 is: 1,236,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,838.80 : 1,285,258.20 = 824,179.60 : x
  2. Step 2: Convert to fraction form
    856,838.80/1,285,258.20 = 824,179.60/x
  3. Step 3: Cross multiply
    856,838.80x = 1,285,258.20 × 824,179.60
  4. Step 4: Simplify right side
    856,838.80x = 1,059,283,589,172.72
  5. Step 5: Solve for x
    x = 1,059,283,589,172.72/856,838.80
  6. Step 6: Final answer
    x = 1,236,269.40

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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.