Finding the Fourth Proportional to 455,971.92, 683,969.56 and 216,029.64
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Solution
The fourth proportional to 455,971.92, 683,969.56 and 216,029.64 is: 324,049.99
Step by Step Solution
- Step 1: Write the proportion equation
455,971.92 : 683,969.56 = 216,029.64 : x - Step 2: Convert to fraction form
455,971.92/683,969.56 = 216,029.64/x - Step 3: Cross multiply
455,971.92x = 683,969.56 × 216,029.64 - Step 4: Simplify right side
455,971.92x = 147,757,697,817.76 - Step 5: Solve for x
x = 147,757,697,817.76/455,971.92 - Step 6: Final answer
x = 324,049.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.