Home / 1,092,815.20-1,639,222.80-919,604.80

Finding the Fourth Proportional to 1,092,815.20, 1,639,222.80 and 919,604.80

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Solution

The fourth proportional to 1,092,815.20, 1,639,222.80 and 919,604.80 is: 1,379,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,815.20 : 1,639,222.80 = 919,604.80 : x
  2. Step 2: Convert to fraction form
    1,092,815.20/1,639,222.80 = 919,604.80/x
  3. Step 3: Cross multiply
    1,092,815.20x = 1,639,222.80 × 919,604.80
  4. Step 4: Simplify right side
    1,092,815.20x = 1,507,437,155,149.44
  5. Step 5: Solve for x
    x = 1,507,437,155,149.44/1,092,815.20
  6. Step 6: Final answer
    x = 1,379,407.20

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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.