Finding the Fourth Proportional to 2,840,968.76, 3,919,564.38 and 1,616,967.73
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Solution
The fourth proportional to 2,840,968.76, 3,919,564.38 and 1,616,967.73 is: 2,230,861.95
Step by Step Solution
- Step 1: Write the proportion equation
2,840,968.76 : 3,919,564.38 = 1,616,967.73 : x - Step 2: Convert to fraction form
2,840,968.76/3,919,564.38 = 1,616,967.73/x - Step 3: Cross multiply
2,840,968.76x = 3,919,564.38 × 1,616,967.73 - Step 4: Simplify right side
2,840,968.76x = 6,337,809,114,382.18 - Step 5: Solve for x
x = 6,337,809,114,382.18/2,840,968.76 - Step 6: Final answer
x = 2,230,861.95
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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.