Finding the Fourth Proportional to 1,601,158.66, 2,209,953.63 and 1,105,138.99
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Solution
The fourth proportional to 1,601,158.66, 2,209,953.63 and 1,105,138.99 is: 1,525,336.61
Step by Step Solution
- Step 1: Write the proportion equation
1,601,158.66 : 2,209,953.63 = 1,105,138.99 : x - Step 2: Convert to fraction form
1,601,158.66/2,209,953.63 = 1,105,138.99/x - Step 3: Cross multiply
1,601,158.66x = 2,209,953.63 × 1,105,138.99 - Step 4: Simplify right side
1,601,158.66x = 2,442,305,911,555.27 - Step 5: Solve for x
x = 2,442,305,911,555.27/1,601,158.66 - Step 6: Final answer
x = 1,525,336.61
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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.