Finding the Fourth Proportional to 2,479,276.85, 3,421,427.42 and 1,391,526.63
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Solution
The fourth proportional to 2,479,276.85, 3,421,427.42 and 1,391,526.63 is: 1,920,320.99
Step by Step Solution
- Step 1: Write the proportion equation
2,479,276.85 : 3,421,427.42 = 1,391,526.63 : x - Step 2: Convert to fraction form
2,479,276.85/3,421,427.42 = 1,391,526.63/x - Step 3: Cross multiply
2,479,276.85x = 3,421,427.42 × 1,391,526.63 - Step 4: Simplify right side
2,479,276.85x = 4,761,007,371,021.01 - Step 5: Solve for x
x = 4,761,007,371,021.01/2,479,276.85 - Step 6: Final answer
x = 1,920,320.99
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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.