Finding the Fourth Proportional to 717,837.14, 990,658.74 and 395,546.84
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Solution
The fourth proportional to 717,837.14, 990,658.74 and 395,546.84 is: 545,878.60
Step by Step Solution
- Step 1: Write the proportion equation
717,837.14 : 990,658.74 = 395,546.84 : x - Step 2: Convert to fraction form
717,837.14/990,658.74 = 395,546.84/x - Step 3: Cross multiply
717,837.14x = 990,658.74 × 395,546.84 - Step 4: Simplify right side
717,837.14x = 391,851,929,172.09 - Step 5: Solve for x
x = 391,851,929,172.09/717,837.14 - Step 6: Final answer
x = 545,878.60
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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.