Finding the Fourth Proportional to 512,416.99, 707,081.74 and 297,515.08
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Solution
The fourth proportional to 512,416.99, 707,081.74 and 297,515.08 is: 410,539.63
Step by Step Solution
- Step 1: Write the proportion equation
512,416.99 : 707,081.74 = 297,515.08 : x - Step 2: Convert to fraction form
512,416.99/707,081.74 = 297,515.08/x - Step 3: Cross multiply
512,416.99x = 707,081.74 × 297,515.08 - Step 4: Simplify right side
512,416.99x = 210,367,480,442.64 - Step 5: Solve for x
x = 210,367,480,442.64/512,416.99 - Step 6: Final answer
x = 410,539.63
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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.