Finding the Fourth Proportional to 687,403.44, 1,031,122.44 and 188,766
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Solution
The fourth proportional to 687,403.44, 1,031,122.44 and 188,766 is: 283,153.75
Step by Step Solution
- Step 1: Write the proportion equation
687,403.44 : 1,031,122.44 = 188,766 : x - Step 2: Convert to fraction form
687,403.44/1,031,122.44 = 188,766/x - Step 3: Cross multiply
687,403.44x = 1,031,122.44 × 188,766 - Step 4: Simplify right side
687,403.44x = 194,640,858,509.04 - Step 5: Solve for x
x = 194,640,858,509.04/687,403.44 - Step 6: Final answer
x = 283,153.75
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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.