Finding the Fourth Proportional to 2,230,546.14, 3,078,109.35 and 1,211,958.18
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Solution
The fourth proportional to 2,230,546.14, 3,078,109.35 and 1,211,958.18 is: 1,672,478.21
Step by Step Solution
- Step 1: Write the proportion equation
2,230,546.14 : 3,078,109.35 = 1,211,958.18 : x - Step 2: Convert to fraction form
2,230,546.14/3,078,109.35 = 1,211,958.18/x - Step 3: Cross multiply
2,230,546.14x = 3,078,109.35 × 1,211,958.18 - Step 4: Simplify right side
2,230,546.14x = 3,730,539,805,666.98 - Step 5: Solve for x
x = 3,730,539,805,666.98/2,230,546.14 - Step 6: Final answer
x = 1,672,478.21
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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.