Home / 1,155,930.80-1,733,896.20-408,052.40

Finding the Fourth Proportional to 1,155,930.80, 1,733,896.20 and 408,052.40

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Solution

The fourth proportional to 1,155,930.80, 1,733,896.20 and 408,052.40 is: 612,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,930.80 : 1,733,896.20 = 408,052.40 : x
  2. Step 2: Convert to fraction form
    1,155,930.80/1,733,896.20 = 408,052.40/x
  3. Step 3: Cross multiply
    1,155,930.80x = 1,733,896.20 × 408,052.40
  4. Step 4: Simplify right side
    1,155,930.80x = 707,520,505,760.88
  5. Step 5: Solve for x
    x = 707,520,505,760.88/1,155,930.80
  6. Step 6: Final answer
    x = 612,078.60

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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.