Finding the Fourth Proportional to 716,882.97, 989,260.86 and 394,531.46
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Solution
The fourth proportional to 716,882.97, 989,260.86 and 394,531.46 is: 544,432.70
Step by Step Solution
- Step 1: Write the proportion equation
716,882.97 : 989,260.86 = 394,531.46 : x - Step 2: Convert to fraction form
716,882.97/989,260.86 = 394,531.46/x - Step 3: Cross multiply
716,882.97x = 989,260.86 × 394,531.46 - Step 4: Simplify right side
716,882.97x = 390,294,531,416.66 - Step 5: Solve for x
x = 390,294,531,416.66/716,882.97 - Step 6: Final answer
x = 544,432.70
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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.