Finding the Fourth Proportional to 5,721,517.62, 7,902,688.05 and 4,277,631.06
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Solution
The fourth proportional to 5,721,517.62, 7,902,688.05 and 4,277,631.06 is: 5,908,359.65
Step by Step Solution
- Step 1: Write the proportion equation
5,721,517.62 : 7,902,688.05 = 4,277,631.06 : x - Step 2: Convert to fraction form
5,721,517.62/7,902,688.05 = 4,277,631.06/x - Step 3: Cross multiply
5,721,517.62x = 7,902,688.05 × 4,277,631.06 - Step 4: Simplify right side
5,721,517.62x = 33,804,783,860,170.83 - Step 5: Solve for x
x = 33,804,783,860,170.83/5,721,517.62 - Step 6: Final answer
x = 5,908,359.65
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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.