Finding the Fourth Proportional to 786,381.24, 1,085,173.94 and 442,207.38
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Solution
The fourth proportional to 786,381.24, 1,085,173.94 and 442,207.38 is: 610,228.09
Step by Step Solution
- Step 1: Write the proportion equation
786,381.24 : 1,085,173.94 = 442,207.38 : x - Step 2: Convert to fraction form
786,381.24/1,085,173.94 = 442,207.38/x - Step 3: Cross multiply
786,381.24x = 1,085,173.94 × 442,207.38 - Step 4: Simplify right side
786,381.24x = 479,871,924,851.68 - Step 5: Solve for x
x = 479,871,924,851.68/786,381.24 - Step 6: Final answer
x = 610,228.09
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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.