Finding the Fourth Proportional to 728,577.92, 1,005,441.93 and 406,308.42
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Solution
The fourth proportional to 728,577.92, 1,005,441.93 and 406,308.42 is: 560,708.07
Step by Step Solution
- Step 1: Write the proportion equation
728,577.92 : 1,005,441.93 = 406,308.42 : x - Step 2: Convert to fraction form
728,577.92/1,005,441.93 = 406,308.42/x - Step 3: Cross multiply
728,577.92x = 1,005,441.93 × 406,308.42 - Step 4: Simplify right side
728,577.92x = 408,519,521,980.05 - Step 5: Solve for x
x = 408,519,521,980.05/728,577.92 - Step 6: Final answer
x = 560,708.07
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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.