Finding the Fourth Proportional to 386,484.18, 533,078.34 and 373,478.82
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Solution
The fourth proportional to 386,484.18, 533,078.34 and 373,478.82 is: 515,140.02
Step by Step Solution
- Step 1: Write the proportion equation
386,484.18 : 533,078.34 = 373,478.82 : x - Step 2: Convert to fraction form
386,484.18/533,078.34 = 373,478.82/x - Step 3: Cross multiply
386,484.18x = 533,078.34 × 373,478.82 - Step 4: Simplify right side
386,484.18x = 199,093,469,390.76 - Step 5: Solve for x
x = 199,093,469,390.76/386,484.18 - Step 6: Final answer
x = 515,140.02
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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.