Finding the Fourth Proportional to 988,703.20, 1,364,421.16 and 580,822.23
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Solution
The fourth proportional to 988,703.20, 1,364,421.16 and 580,822.23 is: 801,540.99
Step by Step Solution
- Step 1: Write the proportion equation
988,703.20 : 1,364,421.16 = 580,822.23 : x - Step 2: Convert to fraction form
988,703.20/1,364,421.16 = 580,822.23/x - Step 3: Cross multiply
988,703.20x = 1,364,421.16 × 580,822.23 - Step 4: Simplify right side
988,703.20x = 792,486,133,988.28 - Step 5: Solve for x
x = 792,486,133,988.28/988,703.20 - Step 6: Final answer
x = 801,540.99
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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.