Home / 1,314,983.70-1,972,475.55-1,261,839.60

Finding the Fourth Proportional to 1,314,983.70, 1,972,475.55 and 1,261,839.60

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Solution

The fourth proportional to 1,314,983.70, 1,972,475.55 and 1,261,839.60 is: 1,892,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,983.70 : 1,972,475.55 = 1,261,839.60 : x
  2. Step 2: Convert to fraction form
    1,314,983.70/1,972,475.55 = 1,261,839.60/x
  3. Step 3: Cross multiply
    1,314,983.70x = 1,972,475.55 × 1,261,839.60
  4. Step 4: Simplify right side
    1,314,983.70x = 2,488,947,759,021.78
  5. Step 5: Solve for x
    x = 2,488,947,759,021.78/1,314,983.70
  6. Step 6: Final answer
    x = 1,892,759.40

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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.