Home / 1,040,068.80-1,560,103.20-911,505.60

Finding the Fourth Proportional to 1,040,068.80, 1,560,103.20 and 911,505.60

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Solution

The fourth proportional to 1,040,068.80, 1,560,103.20 and 911,505.60 is: 1,367,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,068.80 : 1,560,103.20 = 911,505.60 : x
  2. Step 2: Convert to fraction form
    1,040,068.80/1,560,103.20 = 911,505.60/x
  3. Step 3: Cross multiply
    1,040,068.80x = 1,560,103.20 × 911,505.60
  4. Step 4: Simplify right side
    1,040,068.80x = 1,422,042,803,377.92
  5. Step 5: Solve for x
    x = 1,422,042,803,377.92/1,040,068.80
  6. Step 6: Final answer
    x = 1,367,258.40

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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.