Finding the Fourth Proportional to 2,148,717.74, 2,965,231.98 and 1,181,921.58
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Solution
The fourth proportional to 2,148,717.74, 2,965,231.98 and 1,181,921.58 is: 1,631,052.61
Step by Step Solution
- Step 1: Write the proportion equation
2,148,717.74 : 2,965,231.98 = 1,181,921.58 : x - Step 2: Convert to fraction form
2,148,717.74/2,965,231.98 = 1,181,921.58/x - Step 3: Cross multiply
2,148,717.74x = 2,965,231.98 × 1,181,921.58 - Step 4: Simplify right side
2,148,717.74x = 3,504,671,666,868.13 - Step 5: Solve for x
x = 3,504,671,666,868.13/2,148,717.74 - Step 6: Final answer
x = 1,631,052.61
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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.