Finding the Fourth Proportional to 621,219.13, 857,272.01 and 345,573.70
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Solution
The fourth proportional to 621,219.13, 857,272.01 and 345,573.70 is: 476,885.92
Step by Step Solution
- Step 1: Write the proportion equation
621,219.13 : 857,272.01 = 345,573.70 : x - Step 2: Convert to fraction form
621,219.13/857,272.01 = 345,573.70/x - Step 3: Cross multiply
621,219.13x = 857,272.01 × 345,573.70 - Step 4: Simplify right side
621,219.13x = 296,250,656,531.09 - Step 5: Solve for x
x = 296,250,656,531.09/621,219.13 - Step 6: Final answer
x = 476,885.92
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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.