Finding the Fourth Proportional to 4,115,381.96, 5,679,226.26 and 2,279,959.49
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Solution
The fourth proportional to 4,115,381.96, 5,679,226.26 and 2,279,959.49 is: 3,146,343.63
Step by Step Solution
- Step 1: Write the proportion equation
4,115,381.96 : 5,679,226.26 = 2,279,959.49 : x - Step 2: Convert to fraction form
4,115,381.96/5,679,226.26 = 2,279,959.49/x - Step 3: Cross multiply
4,115,381.96x = 5,679,226.26 × 2,279,959.49 - Step 4: Simplify right side
4,115,381.96x = 12,948,405,778,948.07 - Step 5: Solve for x
x = 12,948,405,778,948.07/4,115,381.96 - Step 6: Final answer
x = 3,146,343.63
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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.