Finding the Fourth Proportional to 551,878.70, 826,068.45 and 394,414.70
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Solution
The fourth proportional to 551,878.70, 826,068.45 and 394,414.70 is: 590,371.65
Step by Step Solution
- Step 1: Write the proportion equation
551,878.70 : 826,068.45 = 394,414.70 : x - Step 2: Convert to fraction form
551,878.70/826,068.45 = 394,414.70/x - Step 3: Cross multiply
551,878.70x = 826,068.45 × 394,414.70 - Step 4: Simplify right side
551,878.70x = 325,813,539,886.22 - Step 5: Solve for x
x = 325,813,539,886.22/551,878.70 - Step 6: Final answer
x = 590,371.65
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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.