Finding the Fourth Proportional to 455,578.11, 683,378.10 and 140,037.75
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Solution
The fourth proportional to 455,578.11, 683,378.10 and 140,037.75 is: 210,059.99
Step by Step Solution
- Step 1: Write the proportion equation
455,578.11 : 683,378.10 = 140,037.75 : x - Step 2: Convert to fraction form
455,578.11/683,378.10 = 140,037.75/x - Step 3: Cross multiply
455,578.11x = 683,378.10 × 140,037.75 - Step 4: Simplify right side
455,578.11x = 95,698,731,523.28 - Step 5: Solve for x
x = 95,698,731,523.28/455,578.11 - Step 6: Final answer
x = 210,059.99
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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.