Finding the Fourth Proportional to 808,709.70, 1,212,894.45 and 408,974.70
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Solution
The fourth proportional to 808,709.70, 1,212,894.45 and 408,974.70 is: 613,376.03
Step by Step Solution
- Step 1: Write the proportion equation
808,709.70 : 1,212,894.45 = 408,974.70 : x - Step 2: Convert to fraction form
808,709.70/1,212,894.45 = 408,974.70/x - Step 3: Cross multiply
808,709.70x = 1,212,894.45 × 408,974.70 - Step 4: Simplify right side
808,709.70x = 496,043,143,820.42 - Step 5: Solve for x
x = 496,043,143,820.42/808,709.70 - Step 6: Final answer
x = 613,376.03
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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.