Finding the Fourth Proportional to 720,975.74, 994,952.96 and 398,707.52
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Solution
The fourth proportional to 720,975.74, 994,952.96 and 398,707.52 is: 550,219.94
Step by Step Solution
- Step 1: Write the proportion equation
720,975.74 : 994,952.96 = 398,707.52 : x - Step 2: Convert to fraction form
720,975.74/994,952.96 = 398,707.52/x - Step 3: Cross multiply
720,975.74x = 994,952.96 × 398,707.52 - Step 4: Simplify right side
720,975.74x = 396,695,227,198.26 - Step 5: Solve for x
x = 396,695,227,198.26/720,975.74 - Step 6: Final answer
x = 550,219.94
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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.