Finding the Fourth Proportional to 386,907.36, 579,220.56 and 377,368.80
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Solution
The fourth proportional to 386,907.36, 579,220.56 and 377,368.80 is: 564,940.84
Step by Step Solution
- Step 1: Write the proportion equation
386,907.36 : 579,220.56 = 377,368.80 : x - Step 2: Convert to fraction form
386,907.36/579,220.56 = 377,368.80/x - Step 3: Cross multiply
386,907.36x = 579,220.56 × 377,368.80 - Step 4: Simplify right side
386,907.36x = 218,579,767,662.53 - Step 5: Solve for x
x = 218,579,767,662.53/386,907.36 - Step 6: Final answer
x = 564,940.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.