Finding the Fourth Proportional to 512,296.52, 707,424.21 and 319,036.09
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Solution
The fourth proportional to 512,296.52, 707,424.21 and 319,036.09 is: 440,553.17
Step by Step Solution
- Step 1: Write the proportion equation
512,296.52 : 707,424.21 = 319,036.09 : x - Step 2: Convert to fraction form
512,296.52/707,424.21 = 319,036.09/x - Step 3: Cross multiply
512,296.52x = 707,424.21 × 319,036.09 - Step 4: Simplify right side
512,296.52x = 225,693,853,929.74 - Step 5: Solve for x
x = 225,693,853,929.74/512,296.52 - Step 6: Final answer
x = 440,553.17
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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.