Finding the Fourth Proportional to 463,872.96, 640,340.64 and 313,174.08
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Solution
The fourth proportional to 463,872.96, 640,340.64 and 313,174.08 is: 432,312.53
Step by Step Solution
- Step 1: Write the proportion equation
463,872.96 : 640,340.64 = 313,174.08 : x - Step 2: Convert to fraction form
463,872.96/640,340.64 = 313,174.08/x - Step 3: Cross multiply
463,872.96x = 640,340.64 × 313,174.08 - Step 4: Simplify right side
463,872.96x = 200,538,090,818.61 - Step 5: Solve for x
x = 200,538,090,818.61/463,872.96 - Step 6: Final answer
x = 432,312.53
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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.