Finding the Fourth Proportional to 2,165,203.21, 2,987,888.56 and 1,198,243.03
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Solution
The fourth proportional to 2,165,203.21, 2,987,888.56 and 1,198,243.03 is: 1,653,524.54
Step by Step Solution
- Step 1: Write the proportion equation
2,165,203.21 : 2,987,888.56 = 1,198,243.03 : x - Step 2: Convert to fraction form
2,165,203.21/2,987,888.56 = 1,198,243.03/x - Step 3: Cross multiply
2,165,203.21x = 2,987,888.56 × 1,198,243.03 - Step 4: Simplify right side
2,165,203.21x = 3,580,216,641,436.74 - Step 5: Solve for x
x = 3,580,216,641,436.74/2,165,203.21 - Step 6: Final answer
x = 1,653,524.54
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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.