Finding the Fourth Proportional to 719,473.68, 992,847.60 and 397,176.84
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Solution
The fourth proportional to 719,473.68, 992,847.60 and 397,176.84 is: 548,089.64
Step by Step Solution
- Step 1: Write the proportion equation
719,473.68 : 992,847.60 = 397,176.84 : x - Step 2: Convert to fraction form
719,473.68/992,847.60 = 397,176.84/x - Step 3: Cross multiply
719,473.68x = 992,847.60 × 397,176.84 - Step 4: Simplify right side
719,473.68x = 394,336,072,369.58 - Step 5: Solve for x
x = 394,336,072,369.58/719,473.68 - Step 6: Final answer
x = 548,089.64
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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.