Finding the Fourth Proportional to 857,371.98, 1,285,026.42 and 317,197.56
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Solution
The fourth proportional to 857,371.98, 1,285,026.42 and 317,197.56 is: 475,414.70
Step by Step Solution
- Step 1: Write the proportion equation
857,371.98 : 1,285,026.42 = 317,197.56 : x - Step 2: Convert to fraction form
857,371.98/1,285,026.42 = 317,197.56/x - Step 3: Cross multiply
857,371.98x = 1,285,026.42 × 317,197.56 - Step 4: Simplify right side
857,371.98x = 407,607,244,959.54 - Step 5: Solve for x
x = 407,607,244,959.54/857,371.98 - Step 6: Final answer
x = 475,414.70
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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.