Finding the Fourth Proportional to 1,102,923.08, 1,521,646.26 and 721,173.32
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Solution
The fourth proportional to 1,102,923.08, 1,521,646.26 and 721,173.32 is: 994,965.75
Step by Step Solution
- Step 1: Write the proportion equation
1,102,923.08 : 1,521,646.26 = 721,173.32 : x - Step 2: Convert to fraction form
1,102,923.08/1,521,646.26 = 721,173.32/x - Step 3: Cross multiply
1,102,923.08x = 1,521,646.26 × 721,173.32 - Step 4: Simplify right side
1,102,923.08x = 1,097,370,685,189.78 - Step 5: Solve for x
x = 1,097,370,685,189.78/1,102,923.08 - Step 6: Final answer
x = 994,965.75
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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.