Finding the Fourth Proportional to 678,944.13, 1,018,417.51 and 252,573.44
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Solution
The fourth proportional to 678,944.13, 1,018,417.51 and 252,573.44 is: 378,860.65
Step by Step Solution
- Step 1: Write the proportion equation
678,944.13 : 1,018,417.51 = 252,573.44 : x - Step 2: Convert to fraction form
678,944.13/1,018,417.51 = 252,573.44/x - Step 3: Cross multiply
678,944.13x = 1,018,417.51 × 252,573.44 - Step 4: Simplify right side
678,944.13x = 257,225,213,388.44 - Step 5: Solve for x
x = 257,225,213,388.44/678,944.13 - Step 6: Final answer
x = 378,860.65
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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.