Finding the Fourth Proportional to 5,306,406.40, 7,959,577.20 and 1,519,896.16
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Solution
The fourth proportional to 5,306,406.40, 7,959,577.20 and 1,519,896.16 is: 2,279,834.96
Step by Step Solution
- Step 1: Write the proportion equation
5,306,406.40 : 7,959,577.20 = 1,519,896.16 : x - Step 2: Convert to fraction form
5,306,406.40/7,959,577.20 = 1,519,896.16/x - Step 3: Cross multiply
5,306,406.40x = 7,959,577.20 × 1,519,896.16 - Step 4: Simplify right side
5,306,406.40x = 12,097,730,821,503.55 - Step 5: Solve for x
x = 12,097,730,821,503.55/5,306,406.40 - Step 6: Final answer
x = 2,279,834.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.