Finding the Fourth Proportional to 712,181.97, 982,653.93 and 421,649.24
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Solution
The fourth proportional to 712,181.97, 982,653.93 and 421,649.24 is: 581,782.88
Step by Step Solution
- Step 1: Write the proportion equation
712,181.97 : 982,653.93 = 421,649.24 : x - Step 2: Convert to fraction form
712,181.97/982,653.93 = 421,649.24/x - Step 3: Cross multiply
712,181.97x = 982,653.93 × 421,649.24 - Step 4: Simplify right side
712,181.97x = 414,335,277,854.24 - Step 5: Solve for x
x = 414,335,277,854.24/712,181.97 - Step 6: Final answer
x = 581,782.88
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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.