Finding the Fourth Proportional to 656,937.40, 985,435.26 and 257,542.60
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Solution
The fourth proportional to 656,937.40, 985,435.26 and 257,542.60 is: 386,325.33
Step by Step Solution
- Step 1: Write the proportion equation
656,937.40 : 985,435.26 = 257,542.60 : x - Step 2: Convert to fraction form
656,937.40/985,435.26 = 257,542.60/x - Step 3: Cross multiply
656,937.40x = 985,435.26 × 257,542.60 - Step 4: Simplify right side
656,937.40x = 253,791,558,992.08 - Step 5: Solve for x
x = 253,791,558,992.08/656,937.40 - Step 6: Final answer
x = 386,325.33
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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.