Finding the Fourth Proportional to 554,990.96, 765,889.92 and 300,342.14
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Solution
The fourth proportional to 554,990.96, 765,889.92 and 300,342.14 is: 414,473.45
Step by Step Solution
- Step 1: Write the proportion equation
554,990.96 : 765,889.92 = 300,342.14 : x - Step 2: Convert to fraction form
554,990.96/765,889.92 = 300,342.14/x - Step 3: Cross multiply
554,990.96x = 765,889.92 × 300,342.14 - Step 4: Simplify right side
554,990.96x = 230,029,017,577.23 - Step 5: Solve for x
x = 230,029,017,577.23/554,990.96 - Step 6: Final answer
x = 414,473.45
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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.