Finding the Fourth Proportional to 405,472.93, 559,538.53 and 221,715.79
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Solution
The fourth proportional to 405,472.93, 559,538.53 and 221,715.79 is: 305,960.07
Step by Step Solution
- Step 1: Write the proportion equation
405,472.93 : 559,538.53 = 221,715.79 : x - Step 2: Convert to fraction form
405,472.93/559,538.53 = 221,715.79/x - Step 3: Cross multiply
405,472.93x = 559,538.53 × 221,715.79 - Step 4: Simplify right side
405,472.93x = 124,058,525,261.25 - Step 5: Solve for x
x = 124,058,525,261.25/405,472.93 - Step 6: Final answer
x = 305,960.07
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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.