Finding the Fourth Proportional to 857,408.64, 1,285,817.28 and 351,826.08
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Solution
The fourth proportional to 857,408.64, 1,285,817.28 and 351,826.08 is: 527,617.79
Step by Step Solution
- Step 1: Write the proportion equation
857,408.64 : 1,285,817.28 = 351,826.08 : x - Step 2: Convert to fraction form
857,408.64/1,285,817.28 = 351,826.08/x - Step 3: Cross multiply
857,408.64x = 1,285,817.28 × 351,826.08 - Step 4: Simplify right side
857,408.64x = 452,384,053,218.66 - Step 5: Solve for x
x = 452,384,053,218.66/857,408.64 - Step 6: Final answer
x = 527,617.79
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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.