Finding the Fourth Proportional to 1,313,143.36, 1,969,142.97 and 697,512.60
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Solution
The fourth proportional to 1,313,143.36, 1,969,142.97 and 697,512.60 is: 1,045,965.03
Step by Step Solution
- Step 1: Write the proportion equation
1,313,143.36 : 1,969,142.97 = 697,512.60 : x - Step 2: Convert to fraction form
1,313,143.36/1,969,142.97 = 697,512.60/x - Step 3: Cross multiply
1,313,143.36x = 1,969,142.97 × 697,512.60 - Step 4: Simplify right side
1,313,143.36x = 1,373,502,035,392.09 - Step 5: Solve for x
x = 1,373,502,035,392.09/1,313,143.36 - Step 6: Final answer
x = 1,045,965.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.