Finding the Fourth Proportional to 1,118,561.61, 1,543,653.41 and 635,110.68
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Solution
The fourth proportional to 1,118,561.61, 1,543,653.41 and 635,110.68 is: 876,474.53
Step by Step Solution
- Step 1: Write the proportion equation
1,118,561.61 : 1,543,653.41 = 635,110.68 : x - Step 2: Convert to fraction form
1,118,561.61/1,543,653.41 = 635,110.68/x - Step 3: Cross multiply
1,118,561.61x = 1,543,653.41 × 635,110.68 - Step 4: Simplify right side
1,118,561.61x = 980,390,763,733.87 - Step 5: Solve for x
x = 980,390,763,733.87/1,118,561.61 - Step 6: Final answer
x = 876,474.53
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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.