Finding the Fourth Proportional to 719,503.92, 992,889.36 and 397,207.08
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Solution
The fourth proportional to 719,503.92, 992,889.36 and 397,207.08 is: 548,131.39
Step by Step Solution
- Step 1: Write the proportion equation
719,503.92 : 992,889.36 = 397,207.08 : x - Step 2: Convert to fraction form
719,503.92/992,889.36 = 397,207.08/x - Step 3: Cross multiply
719,503.92x = 992,889.36 × 397,207.08 - Step 4: Simplify right side
719,503.92x = 394,382,683,448.67 - Step 5: Solve for x
x = 394,382,683,448.67/719,503.92 - Step 6: Final answer
x = 548,131.39
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1.5x scale
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.