Finding the Fourth Proportional to 678,634.44, 1,018,000.65 and 205,357.08
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Solution
The fourth proportional to 678,634.44, 1,018,000.65 and 205,357.08 is: 308,050.44
Step by Step Solution
- Step 1: Write the proportion equation
678,634.44 : 1,018,000.65 = 205,357.08 : x - Step 2: Convert to fraction form
678,634.44/1,018,000.65 = 205,357.08/x - Step 3: Cross multiply
678,634.44x = 1,018,000.65 × 205,357.08 - Step 4: Simplify right side
678,634.44x = 209,053,640,922.10 - Step 5: Solve for x
x = 209,053,640,922.10/678,634.44 - Step 6: Final answer
x = 308,050.44
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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.