Finding the Fourth Proportional to 660,872.88, 911,973.60 and 374,395.32
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Solution
The fourth proportional to 660,872.88, 911,973.60 and 374,395.32 is: 516,647.99
Step by Step Solution
- Step 1: Write the proportion equation
660,872.88 : 911,973.60 = 374,395.32 : x - Step 2: Convert to fraction form
660,872.88/911,973.60 = 374,395.32/x - Step 3: Cross multiply
660,872.88x = 911,973.60 × 374,395.32 - Step 4: Simplify right side
660,872.88x = 341,438,647,803.55 - Step 5: Solve for x
x = 341,438,647,803.55/660,872.88 - Step 6: Final answer
x = 516,647.99
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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.