Finding the Fourth Proportional to 719,487.44, 992,900.74 and 397,197.74
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Solution
The fourth proportional to 719,487.44, 992,900.74 and 397,197.74 is: 548,137.34
Step by Step Solution
- Step 1: Write the proportion equation
719,487.44 : 992,900.74 = 397,197.74 : x - Step 2: Convert to fraction form
719,487.44/992,900.74 = 397,197.74/x - Step 3: Cross multiply
719,487.44x = 992,900.74 × 397,197.74 - Step 4: Simplify right side
719,487.44x = 394,377,929,972.33 - Step 5: Solve for x
x = 394,377,929,972.33/719,487.44 - Step 6: Final answer
x = 548,137.34
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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.