Finding the Fourth Proportional to 2,840,962.21, 3,919,279.47 and 1,738,446.13
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Solution
The fourth proportional to 2,840,962.21, 3,919,279.47 and 1,738,446.13 is: 2,398,291.75
Step by Step Solution
- Step 1: Write the proportion equation
2,840,962.21 : 3,919,279.47 = 1,738,446.13 : x - Step 2: Convert to fraction form
2,840,962.21/3,919,279.47 = 1,738,446.13/x - Step 3: Cross multiply
2,840,962.21x = 3,919,279.47 × 1,738,446.13 - Step 4: Simplify right side
2,840,962.21x = 6,813,456,228,123.83 - Step 5: Solve for x
x = 6,813,456,228,123.83/2,840,962.21 - Step 6: Final answer
x = 2,398,291.75
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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.