Finding the Fourth Proportional to 719,493.99, 992,875.62 and 397,197.17
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Solution
The fourth proportional to 719,493.99, 992,875.62 and 397,197.17 is: 548,117.69
Step by Step Solution
- Step 1: Write the proportion equation
719,493.99 : 992,875.62 = 397,197.17 : x - Step 2: Convert to fraction form
719,493.99/992,875.62 = 397,197.17/x - Step 3: Cross multiply
719,493.99x = 992,875.62 × 397,197.17 - Step 4: Simplify right side
719,493.99x = 394,367,386,674.39 - Step 5: Solve for x
x = 394,367,386,674.39/719,493.99 - Step 6: Final answer
x = 548,117.69
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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.