Finding the Fourth Proportional to 2,578,729.79, 3,558,647.84 and 1,432,810.14
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Solution
The fourth proportional to 2,578,729.79, 3,558,647.84 and 1,432,810.14 is: 1,977,278.40
Step by Step Solution
- Step 1: Write the proportion equation
2,578,729.79 : 3,558,647.84 = 1,432,810.14 : x - Step 2: Convert to fraction form
2,578,729.79/3,558,647.84 = 1,432,810.14/x - Step 3: Cross multiply
2,578,729.79x = 3,558,647.84 × 1,432,810.14 - Step 4: Simplify right side
2,578,729.79x = 5,098,866,702,677.05 - Step 5: Solve for x
x = 5,098,866,702,677.05/2,578,729.79 - Step 6: Final answer
x = 1,977,278.40
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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.