Finding the Fourth Proportional to 557,021.21, 835,397.35 and 257,213.58
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Solution
The fourth proportional to 557,021.21, 835,397.35 and 257,213.58 is: 385,758.28
Step by Step Solution
- Step 1: Write the proportion equation
557,021.21 : 835,397.35 = 257,213.58 : x - Step 2: Convert to fraction form
557,021.21/835,397.35 = 257,213.58/x - Step 3: Cross multiply
557,021.21x = 835,397.35 × 257,213.58 - Step 4: Simplify right side
557,021.21x = 214,875,539,340.24 - Step 5: Solve for x
x = 214,875,539,340.24/557,021.21 - Step 6: Final answer
x = 385,758.28
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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.