Finding the Fourth Proportional to 1,977,416.18, 2,728,855.80 and 1,161,654.26
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Solution
The fourth proportional to 1,977,416.18, 2,728,855.80 and 1,161,654.26 is: 1,603,095.49
Step by Step Solution
- Step 1: Write the proportion equation
1,977,416.18 : 2,728,855.80 = 1,161,654.26 : x - Step 2: Convert to fraction form
1,977,416.18/2,728,855.80 = 1,161,654.26/x - Step 3: Cross multiply
1,977,416.18x = 2,728,855.80 × 1,161,654.26 - Step 4: Simplify right side
1,977,416.18x = 3,169,986,964,995.71 - Step 5: Solve for x
x = 3,169,986,964,995.71/1,977,416.18 - Step 6: Final answer
x = 1,603,095.49
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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.