Finding the Fourth Proportional to 523,728.86, 722,689.70 and 351,611.96
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Solution
The fourth proportional to 523,728.86, 722,689.70 and 351,611.96 is: 485,186.82
Step by Step Solution
- Step 1: Write the proportion equation
523,728.86 : 722,689.70 = 351,611.96 : x - Step 2: Convert to fraction form
523,728.86/722,689.70 = 351,611.96/x - Step 3: Cross multiply
523,728.86x = 722,689.70 × 351,611.96 - Step 4: Simplify right side
523,728.86x = 254,106,341,888.81 - Step 5: Solve for x
x = 254,106,341,888.81/523,728.86 - Step 6: Final answer
x = 485,186.82
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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.