Finding the Fourth Proportional to 2,293,410.54, 3,420,765.42 and 1,991,517.06
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Solution
The fourth proportional to 2,293,410.54, 3,420,765.42 and 1,991,517.06 is: 2,970,472.39
Step by Step Solution
- Step 1: Write the proportion equation
2,293,410.54 : 3,420,765.42 = 1,991,517.06 : x - Step 2: Convert to fraction form
2,293,410.54/3,420,765.42 = 1,991,517.06/x - Step 3: Cross multiply
2,293,410.54x = 3,420,765.42 × 1,991,517.06 - Step 4: Simplify right side
2,293,410.54x = 6,812,512,692,188.07 - Step 5: Solve for x
x = 6,812,512,692,188.07/2,293,410.54 - Step 6: Final answer
x = 2,970,472.39
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.