Finding the Fourth Proportional to 719,637.70, 993,095.76 and 397,345.18
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Solution
The fourth proportional to 719,637.70, 993,095.76 and 397,345.18 is: 548,333.99
Step by Step Solution
- Step 1: Write the proportion equation
719,637.70 : 993,095.76 = 397,345.18 : x - Step 2: Convert to fraction form
719,637.70/993,095.76 = 397,345.18/x - Step 3: Cross multiply
719,637.70x = 993,095.76 × 397,345.18 - Step 4: Simplify right side
719,637.70x = 394,601,813,514.44 - Step 5: Solve for x
x = 394,601,813,514.44/719,637.70 - Step 6: Final answer
x = 548,333.99
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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.