Finding the Fourth Proportional to 707,153.68, 975,974.94 and 397,091.08
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Solution
The fourth proportional to 707,153.68, 975,974.94 and 397,091.08 is: 548,043.45
Step by Step Solution
- Step 1: Write the proportion equation
707,153.68 : 975,974.94 = 397,091.08 : x - Step 2: Convert to fraction form
707,153.68/975,974.94 = 397,091.08/x - Step 3: Cross multiply
707,153.68x = 975,974.94 × 397,091.08 - Step 4: Simplify right side
707,153.68x = 387,550,942,977.54 - Step 5: Solve for x
x = 387,550,942,977.54/707,153.68 - Step 6: Final answer
x = 548,043.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.