Finding the Fourth Proportional to 5,280,351.62, 7,285,636.28 and 2,988,512.24
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Solution
The fourth proportional to 5,280,351.62, 7,285,636.28 and 2,988,512.24 is: 4,123,440.02
Step by Step Solution
- Step 1: Write the proportion equation
5,280,351.62 : 7,285,636.28 = 2,988,512.24 : x - Step 2: Convert to fraction form
5,280,351.62/7,285,636.28 = 2,988,512.24/x - Step 3: Cross multiply
5,280,351.62x = 7,285,636.28 × 2,988,512.24 - Step 4: Simplify right side
5,280,351.62x = 21,773,213,198,968.07 - Step 5: Solve for x
x = 21,773,213,198,968.07/5,280,351.62 - Step 6: Final answer
x = 4,123,440.02
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1.5x scale
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.