Home / 1,313,144.36-1,969,144.47-697,513.60

Finding the Fourth Proportional to 1,313,144.36, 1,969,144.47 and 697,513.60

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Solution

The fourth proportional to 1,313,144.36, 1,969,144.47 and 697,513.60 is: 1,045,966.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,144.36 : 1,969,144.47 = 697,513.60 : x
  2. Step 2: Convert to fraction form
    1,313,144.36/1,969,144.47 = 697,513.60/x
  3. Step 3: Cross multiply
    1,313,144.36x = 1,969,144.47 × 697,513.60
  4. Step 4: Simplify right side
    1,313,144.36x = 1,373,505,048,189.79
  5. Step 5: Solve for x
    x = 1,373,505,048,189.79/1,313,144.36
  6. Step 6: Final answer
    x = 1,045,966.53

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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.