Finding the Fourth Proportional to 857,235.05, 1,286,623.49 and 458,216.90
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Solution
The fourth proportional to 857,235.05, 1,286,623.49 and 458,216.90 is: 687,737.43
Step by Step Solution
- Step 1: Write the proportion equation
857,235.05 : 1,286,623.49 = 458,216.90 : x - Step 2: Convert to fraction form
857,235.05/1,286,623.49 = 458,216.90/x - Step 3: Cross multiply
857,235.05x = 1,286,623.49 × 458,216.90 - Step 4: Simplify right side
857,235.05x = 589,552,625,733.09 - Step 5: Solve for x
x = 589,552,625,733.09/857,235.05 - Step 6: Final answer
x = 687,737.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.