Finding the Fourth Proportional to 515,587.91, 711,596.81 and 300,727.96
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Solution
The fourth proportional to 515,587.91, 711,596.81 and 300,727.96 is: 415,054.45
Step by Step Solution
- Step 1: Write the proportion equation
515,587.91 : 711,596.81 = 300,727.96 : x - Step 2: Convert to fraction form
515,587.91/711,596.81 = 300,727.96/x - Step 3: Cross multiply
515,587.91x = 711,596.81 × 300,727.96 - Step 4: Simplify right side
515,587.91x = 213,997,055,986.64 - Step 5: Solve for x
x = 213,997,055,986.64/515,587.91 - Step 6: Final answer
x = 415,054.45
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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.