Finding the Fourth Proportional to 636,208.36, 877,952.12 and 345,813.03
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Solution
The fourth proportional to 636,208.36, 877,952.12 and 345,813.03 is: 477,213.60
Step by Step Solution
- Step 1: Write the proportion equation
636,208.36 : 877,952.12 = 345,813.03 : x - Step 2: Convert to fraction form
636,208.36/877,952.12 = 345,813.03/x - Step 3: Cross multiply
636,208.36x = 877,952.12 × 345,813.03 - Step 4: Simplify right side
636,208.36x = 303,607,281,083.06 - Step 5: Solve for x
x = 303,607,281,083.06/636,208.36 - Step 6: Final answer
x = 477,213.60
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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.