Finding the Fourth Proportional to 714,608.24, 986,161.04 and 392,339.08
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Solution
The fourth proportional to 714,608.24, 986,161.04 and 392,339.08 is: 541,428.85
Step by Step Solution
- Step 1: Write the proportion equation
714,608.24 : 986,161.04 = 392,339.08 : x - Step 2: Convert to fraction form
714,608.24/986,161.04 = 392,339.08/x - Step 3: Cross multiply
714,608.24x = 986,161.04 × 392,339.08 - Step 4: Simplify right side
714,608.24x = 386,909,515,165.44 - Step 5: Solve for x
x = 386,909,515,165.44/714,608.24 - Step 6: Final answer
x = 541,428.85
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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.