Home / 2,289,918.80-3,431,940.60-1,279,038.80

Finding the Fourth Proportional to 2,289,918.80, 3,431,940.60 and 1,279,038.80

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Solution

The fourth proportional to 2,289,918.80, 3,431,940.60 and 1,279,038.80 is: 1,916,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289,918.80 : 3,431,940.60 = 1,279,038.80 : x
  2. Step 2: Convert to fraction form
    2,289,918.80/3,431,940.60 = 1,279,038.80/x
  3. Step 3: Cross multiply
    2,289,918.80x = 3,431,940.60 × 1,279,038.80
  4. Step 4: Simplify right side
    2,289,918.80x = 4,389,585,186,695.28
  5. Step 5: Solve for x
    x = 4,389,585,186,695.28/2,289,918.80
  6. Step 6: Final answer
    x = 1,916,917.40

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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.