Finding the Fourth Proportional to 876,489.63, 1,209,531.15 and 494,551.95
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Solution
The fourth proportional to 876,489.63, 1,209,531.15 and 494,551.95 is: 682,467.84
Step by Step Solution
- Step 1: Write the proportion equation
876,489.63 : 1,209,531.15 = 494,551.95 : x - Step 2: Convert to fraction form
876,489.63/1,209,531.15 = 494,551.95/x - Step 3: Cross multiply
876,489.63x = 1,209,531.15 × 494,551.95 - Step 4: Simplify right side
876,489.63x = 598,175,988,818.24 - Step 5: Solve for x
x = 598,175,988,818.24/876,489.63 - Step 6: Final answer
x = 682,467.84
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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.