Finding the Fourth Proportional to 811,937.49, 1,120,465.49 and 449,362.05
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Solution
The fourth proportional to 811,937.49, 1,120,465.49 and 449,362.05 is: 620,115.06
Step by Step Solution
- Step 1: Write the proportion equation
811,937.49 : 1,120,465.49 = 449,362.05 : x - Step 2: Convert to fraction form
811,937.49/1,120,465.49 = 449,362.05/x - Step 3: Cross multiply
811,937.49x = 1,120,465.49 × 449,362.05 - Step 4: Simplify right side
811,937.49x = 503,494,667,293.84 - Step 5: Solve for x
x = 503,494,667,293.84/811,937.49 - Step 6: Final answer
x = 620,115.06
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.