Finding the Fourth Proportional to 661,679.23, 992,617.26 and 306,729.13
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Solution
The fourth proportional to 661,679.23, 992,617.26 and 306,729.13 is: 460,139.32
Step by Step Solution
- Step 1: Write the proportion equation
661,679.23 : 992,617.26 = 306,729.13 : x - Step 2: Convert to fraction form
661,679.23/992,617.26 = 306,729.13/x - Step 3: Cross multiply
661,679.23x = 992,617.26 × 306,729.13 - Step 4: Simplify right side
661,679.23x = 304,464,628,582.78 - Step 5: Solve for x
x = 304,464,628,582.78/661,679.23 - Step 6: Final answer
x = 460,139.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.