Finding the Fourth Proportional to 2,019,921.75, 2,787,550.34 and 1,114,562.07
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Solution
The fourth proportional to 2,019,921.75, 2,787,550.34 and 1,114,562.07 is: 1,538,127.84
Step by Step Solution
- Step 1: Write the proportion equation
2,019,921.75 : 2,787,550.34 = 1,114,562.07 : x - Step 2: Convert to fraction form
2,019,921.75/2,787,550.34 = 1,114,562.07/x - Step 3: Cross multiply
2,019,921.75x = 2,787,550.34 × 1,114,562.07 - Step 4: Simplify right side
2,019,921.75x = 3,106,897,877,179.60 - Step 5: Solve for x
x = 3,106,897,877,179.60/2,019,921.75 - Step 6: Final answer
x = 1,538,127.84
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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.