Finding the Fourth Proportional to 507,115.49, 699,838.23 and 289,359.62
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Solution
The fourth proportional to 507,115.49, 699,838.23 and 289,359.62 is: 399,327.03
Step by Step Solution
- Step 1: Write the proportion equation
507,115.49 : 699,838.23 = 289,359.62 : x - Step 2: Convert to fraction form
507,115.49/699,838.23 = 289,359.62/x - Step 3: Cross multiply
507,115.49x = 699,838.23 × 289,359.62 - Step 4: Simplify right side
507,115.49x = 202,504,920,908.63 - Step 5: Solve for x
x = 202,504,920,908.63/507,115.49 - Step 6: Final answer
x = 399,327.03
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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.