Finding the Fourth Proportional to 857,356.84, 1,286,035.30 and 288,690.34
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Solution
The fourth proportional to 857,356.84, 1,286,035.30 and 288,690.34 is: 433,035.52
Step by Step Solution
- Step 1: Write the proportion equation
857,356.84 : 1,286,035.30 = 288,690.34 : x - Step 2: Convert to fraction form
857,356.84/1,286,035.30 = 288,690.34/x - Step 3: Cross multiply
857,356.84x = 1,286,035.30 × 288,690.34 - Step 4: Simplify right side
857,356.84x = 371,265,965,942.21 - Step 5: Solve for x
x = 371,265,965,942.21/857,356.84 - Step 6: Final answer
x = 433,035.52
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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.