Finding the Fourth Proportional to 2,318,778.48, 3,199,911.36 and 1,286,442.88
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Solution
The fourth proportional to 2,318,778.48, 3,199,911.36 and 1,286,442.88 is: 1,775,289.54
Step by Step Solution
- Step 1: Write the proportion equation
2,318,778.48 : 3,199,911.36 = 1,286,442.88 : x - Step 2: Convert to fraction form
2,318,778.48/3,199,911.36 = 1,286,442.88/x - Step 3: Cross multiply
2,318,778.48x = 3,199,911.36 × 1,286,442.88 - Step 4: Simplify right side
2,318,778.48x = 4,116,503,185,703.12 - Step 5: Solve for x
x = 4,116,503,185,703.12/2,318,778.48 - Step 6: Final answer
x = 1,775,289.54
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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.