Finding the Fourth Proportional to 3,557,963.96, 4,909,983.76 and 1,926,371.12
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Solution
The fourth proportional to 3,557,963.96, 4,909,983.76 and 1,926,371.12 is: 2,658,388.62
Step by Step Solution
- Step 1: Write the proportion equation
3,557,963.96 : 4,909,983.76 = 1,926,371.12 : x - Step 2: Convert to fraction form
3,557,963.96/4,909,983.76 = 1,926,371.12/x - Step 3: Cross multiply
3,557,963.96x = 4,909,983.76 × 1,926,371.12 - Step 4: Simplify right side
3,557,963.96x = 9,458,450,914,933.01 - Step 5: Solve for x
x = 9,458,450,914,933.01/3,557,963.96 - Step 6: Final answer
x = 2,658,388.62
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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.