Finding the Fourth Proportional to 719,398.60, 992,770.26 and 397,108.90
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Solution
The fourth proportional to 719,398.60, 992,770.26 and 397,108.90 is: 548,010.39
Step by Step Solution
- Step 1: Write the proportion equation
719,398.60 : 992,770.26 = 397,108.90 : x - Step 2: Convert to fraction form
719,398.60/992,770.26 = 397,108.90/x - Step 3: Cross multiply
719,398.60x = 992,770.26 × 397,108.90 - Step 4: Simplify right side
719,398.60x = 394,237,905,901.31 - Step 5: Solve for x
x = 394,237,905,901.31/719,398.60 - Step 6: Final answer
x = 548,010.39
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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.