Finding the Fourth Proportional to 719,412.92, 992,777.88 and 397,114.68
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Solution
The fourth proportional to 719,412.92, 992,777.88 and 397,114.68 is: 548,011.66
Step by Step Solution
- Step 1: Write the proportion equation
719,412.92 : 992,777.88 = 397,114.68 : x - Step 2: Convert to fraction form
719,412.92/992,777.88 = 397,114.68/x - Step 3: Cross multiply
719,412.92x = 992,777.88 × 397,114.68 - Step 4: Simplify right side
719,412.92x = 394,246,670,127.28 - Step 5: Solve for x
x = 394,246,670,127.28/719,412.92 - Step 6: Final answer
x = 548,011.66
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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.