Finding the Fourth Proportional to 636,063.99, 877,731.21 and 349,584.33
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Solution
The fourth proportional to 636,063.99, 877,731.21 and 349,584.33 is: 482,405.99
Step by Step Solution
- Step 1: Write the proportion equation
636,063.99 : 877,731.21 = 349,584.33 : x - Step 2: Convert to fraction form
636,063.99/877,731.21 = 349,584.33/x - Step 3: Cross multiply
636,063.99x = 877,731.21 × 349,584.33 - Step 4: Simplify right side
636,063.99x = 306,841,076,967.94 - Step 5: Solve for x
x = 306,841,076,967.94/636,063.99 - Step 6: Final answer
x = 482,405.99
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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.