Finding the Fourth Proportional to 2,405,328.80, 3,319,407.36 and 1,372,815.92
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Solution
The fourth proportional to 2,405,328.80, 3,319,407.36 and 1,372,815.92 is: 1,894,516.57
Step by Step Solution
- Step 1: Write the proportion equation
2,405,328.80 : 3,319,407.36 = 1,372,815.92 : x - Step 2: Convert to fraction form
2,405,328.80/3,319,407.36 = 1,372,815.92/x - Step 3: Cross multiply
2,405,328.80x = 3,319,407.36 × 1,372,815.92 - Step 4: Simplify right side
2,405,328.80x = 4,556,935,268,773.17 - Step 5: Solve for x
x = 4,556,935,268,773.17/2,405,328.80 - Step 6: Final answer
x = 1,894,516.57
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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.