Home / 1,345,912.38-1,857,560.58-863,022.78

Finding the Fourth Proportional to 1,345,912.38, 1,857,560.58 and 863,022.78

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Solution

The fourth proportional to 1,345,912.38, 1,857,560.58 and 863,022.78 is: 1,191,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,912.38 : 1,857,560.58 = 863,022.78 : x
  2. Step 2: Convert to fraction form
    1,345,912.38/1,857,560.58 = 863,022.78/x
  3. Step 3: Cross multiply
    1,345,912.38x = 1,857,560.58 × 863,022.78
  4. Step 4: Simplify right side
    1,345,912.38x = 1,603,117,095,770.01
  5. Step 5: Solve for x
    x = 1,603,117,095,770.01/1,345,912.38
  6. Step 6: Final answer
    x = 1,191,100.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.