Finding the Fourth Proportional to 1,207,455.53, 1,811,245.30 and 308,905.02
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Solution
The fourth proportional to 1,207,455.53, 1,811,245.30 and 308,905.02 is: 463,373.39
Step by Step Solution
- Step 1: Write the proportion equation
1,207,455.53 : 1,811,245.30 = 308,905.02 : x - Step 2: Convert to fraction form
1,207,455.53/1,811,245.30 = 308,905.02/x - Step 3: Cross multiply
1,207,455.53x = 1,811,245.30 × 308,905.02 - Step 4: Simplify right side
1,207,455.53x = 559,502,764,849.14 - Step 5: Solve for x
x = 559,502,764,849.14/1,207,455.53 - Step 6: Final answer
x = 463,373.39
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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.