Finding the Fourth Proportional to 395,806.08, 546,935.64 and 288,188.64
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Solution
The fourth proportional to 395,806.08, 546,935.64 and 288,188.64 is: 398,226.93
Step by Step Solution
- Step 1: Write the proportion equation
395,806.08 : 546,935.64 = 288,188.64 : x - Step 2: Convert to fraction form
395,806.08/546,935.64 = 288,188.64/x - Step 3: Cross multiply
395,806.08x = 546,935.64 × 288,188.64 - Step 4: Simplify right side
395,806.08x = 157,620,638,259.13 - Step 5: Solve for x
x = 157,620,638,259.13/395,806.08 - Step 6: Final answer
x = 398,226.93
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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.