Finding the Fourth Proportional to 2,279,442.39, 3,145,776.66 and 1,312,551.92
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Solution
The fourth proportional to 2,279,442.39, 3,145,776.66 and 1,312,551.92 is: 1,811,405.81
Step by Step Solution
- Step 1: Write the proportion equation
2,279,442.39 : 3,145,776.66 = 1,312,551.92 : x - Step 2: Convert to fraction form
2,279,442.39/3,145,776.66 = 1,312,551.92/x - Step 3: Cross multiply
2,279,442.39x = 3,145,776.66 × 1,312,551.92 - Step 4: Simplify right side
2,279,442.39x = 4,128,995,194,974.19 - Step 5: Solve for x
x = 4,128,995,194,974.19/2,279,442.39 - Step 6: Final answer
x = 1,811,405.81
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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.