Finding the Fourth Proportional to 452,478.99, 678,708.11 and 227,779.09
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Solution
The fourth proportional to 452,478.99, 678,708.11 and 227,779.09 is: 341,663.41
Step by Step Solution
- Step 1: Write the proportion equation
452,478.99 : 678,708.11 = 227,779.09 : x - Step 2: Convert to fraction form
452,478.99/678,708.11 = 227,779.09/x - Step 3: Cross multiply
452,478.99x = 678,708.11 × 227,779.09 - Step 4: Simplify right side
452,478.99x = 154,595,514,544.10 - Step 5: Solve for x
x = 154,595,514,544.10/452,478.99 - Step 6: Final answer
x = 341,663.41
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1.5x scale
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.