Finding the Fourth Proportional to 3,112,665.84, 4,295,478.78 and 1,681,881.84
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Solution
The fourth proportional to 3,112,665.84, 4,295,478.78 and 1,681,881.84 is: 2,320,996.90
Step by Step Solution
- Step 1: Write the proportion equation
3,112,665.84 : 4,295,478.78 = 1,681,881.84 : x - Step 2: Convert to fraction form
3,112,665.84/4,295,478.78 = 1,681,881.84/x - Step 3: Cross multiply
3,112,665.84x = 4,295,478.78 × 1,681,881.84 - Step 4: Simplify right side
3,112,665.84x = 7,224,487,754,187.36 - Step 5: Solve for x
x = 7,224,487,754,187.36/3,112,665.84 - Step 6: Final answer
x = 2,320,996.90
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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.