Finding the Fourth Proportional to 719,489.35, 992,869.27 and 397,192.53
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Solution
The fourth proportional to 719,489.35, 992,869.27 and 397,192.53 is: 548,111.32
Step by Step Solution
- Step 1: Write the proportion equation
719,489.35 : 992,869.27 = 397,192.53 : x - Step 2: Convert to fraction form
719,489.35/992,869.27 = 397,192.53/x - Step 3: Cross multiply
719,489.35x = 992,869.27 × 397,192.53 - Step 4: Simplify right side
719,489.35x = 394,360,257,310.55 - Step 5: Solve for x
x = 394,360,257,310.55/719,489.35 - Step 6: Final answer
x = 548,111.32
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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.