Finding the Fourth Proportional to 512,990.14, 707,924.91 and 286,635.82
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Solution
The fourth proportional to 512,990.14, 707,924.91 and 286,635.82 is: 395,556.60
Step by Step Solution
- Step 1: Write the proportion equation
512,990.14 : 707,924.91 = 286,635.82 : x - Step 2: Convert to fraction form
512,990.14/707,924.91 = 286,635.82/x - Step 3: Cross multiply
512,990.14x = 707,924.91 × 286,635.82 - Step 4: Simplify right side
512,990.14x = 202,916,637,076.28 - Step 5: Solve for x
x = 202,916,637,076.28/512,990.14 - Step 6: Final answer
x = 395,556.60
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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.