Finding the Fourth Proportional to 1,769,696.61, 2,442,388.67 and 1,005,864.99
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Solution
The fourth proportional to 1,769,696.61, 2,442,388.67 and 1,005,864.99 is: 1,388,211.54
Step by Step Solution
- Step 1: Write the proportion equation
1,769,696.61 : 2,442,388.67 = 1,005,864.99 : x - Step 2: Convert to fraction form
1,769,696.61/2,442,388.67 = 1,005,864.99/x - Step 3: Cross multiply
1,769,696.61x = 2,442,388.67 × 1,005,864.99 - Step 4: Simplify right side
1,769,696.61x = 2,456,713,255,125.66 - Step 5: Solve for x
x = 2,456,713,255,125.66/1,769,696.61 - Step 6: Final answer
x = 1,388,211.54
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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.