Finding the Fourth Proportional to 559,203.48, 771,709.68 and 317,481.12
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Solution
The fourth proportional to 559,203.48, 771,709.68 and 317,481.12 is: 438,128.99
Step by Step Solution
- Step 1: Write the proportion equation
559,203.48 : 771,709.68 = 317,481.12 : x - Step 2: Convert to fraction form
559,203.48/771,709.68 = 317,481.12/x - Step 3: Cross multiply
559,203.48x = 771,709.68 × 317,481.12 - Step 4: Simplify right side
559,203.48x = 245,003,253,521.24 - Step 5: Solve for x
x = 245,003,253,521.24/559,203.48 - Step 6: Final answer
x = 438,128.99
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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.