Finding the Fourth Proportional to 724,258.17, 1,086,387.18 and 386,274.87
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Solution
The fourth proportional to 724,258.17, 1,086,387.18 and 386,274.87 is: 579,412.26
Step by Step Solution
- Step 1: Write the proportion equation
724,258.17 : 1,086,387.18 = 386,274.87 : x - Step 2: Convert to fraction form
724,258.17/1,086,387.18 = 386,274.87/x - Step 3: Cross multiply
724,258.17x = 1,086,387.18 × 386,274.87 - Step 4: Simplify right side
724,258.17x = 419,644,066,724.17 - Step 5: Solve for x
x = 419,644,066,724.17/724,258.17 - Step 6: Final answer
x = 579,412.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.