Finding the Fourth Proportional to 3,079,013.73, 4,248,965.55 and 1,721,013.09
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Solution
The fourth proportional to 3,079,013.73, 4,248,965.55 and 1,721,013.09 is: 2,374,957.04
Step by Step Solution
- Step 1: Write the proportion equation
3,079,013.73 : 4,248,965.55 = 1,721,013.09 : x - Step 2: Convert to fraction form
3,079,013.73/4,248,965.55 = 1,721,013.09/x - Step 3: Cross multiply
3,079,013.73x = 4,248,965.55 × 1,721,013.09 - Step 4: Simplify right side
3,079,013.73x = 7,312,525,330,509.05 - Step 5: Solve for x
x = 7,312,525,330,509.05/3,079,013.73 - Step 6: Final answer
x = 2,374,957.04
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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.