Finding the Fourth Proportional to 469,936.18, 646,872.99 and 405,609.53
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Solution
The fourth proportional to 469,936.18, 646,872.99 and 405,609.53 is: 558,326.55
Step by Step Solution
- Step 1: Write the proportion equation
469,936.18 : 646,872.99 = 405,609.53 : x - Step 2: Convert to fraction form
469,936.18/646,872.99 = 405,609.53/x - Step 3: Cross multiply
469,936.18x = 646,872.99 × 405,609.53 - Step 4: Simplify right side
469,936.18x = 262,377,844,688.19 - Step 5: Solve for x
x = 262,377,844,688.19/469,936.18 - Step 6: Final answer
x = 558,326.55
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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.