Finding the Fourth Proportional to 719,853.68, 993,379.07 and 397,556.84
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Solution
The fourth proportional to 719,853.68, 993,379.07 and 397,556.84 is: 548,617.94
Step by Step Solution
- Step 1: Write the proportion equation
719,853.68 : 993,379.07 = 397,556.84 : x - Step 2: Convert to fraction form
719,853.68/993,379.07 = 397,556.84/x - Step 3: Cross multiply
719,853.68x = 993,379.07 × 397,556.84 - Step 4: Simplify right side
719,853.68x = 394,924,637,036.66 - Step 5: Solve for x
x = 394,924,637,036.66/719,853.68 - Step 6: Final answer
x = 548,617.94
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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.