Finding the Fourth Proportional to 730,530.09, 1,008,128.57 and 408,240.11
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Solution
The fourth proportional to 730,530.09, 1,008,128.57 and 408,240.11 is: 563,369.70
Step by Step Solution
- Step 1: Write the proportion equation
730,530.09 : 1,008,128.57 = 408,240.11 : x - Step 2: Convert to fraction form
730,530.09/1,008,128.57 = 408,240.11/x - Step 3: Cross multiply
730,530.09x = 1,008,128.57 × 408,240.11 - Step 4: Simplify right side
730,530.09x = 411,558,518,310.94 - Step 5: Solve for x
x = 411,558,518,310.94/730,530.09 - Step 6: Final answer
x = 563,369.70
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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.