Finding the Fourth Proportional to 607,531.40, 911,297.10 and 408,465.80
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Solution
The fourth proportional to 607,531.40, 911,297.10 and 408,465.80 is: 612,698.70
Step by Step Solution
- Step 1: Write the proportion equation
607,531.40 : 911,297.10 = 408,465.80 : x - Step 2: Convert to fraction form
607,531.40/911,297.10 = 408,465.80/x - Step 3: Cross multiply
607,531.40x = 911,297.10 × 408,465.80 - Step 4: Simplify right side
607,531.40x = 372,233,698,989.18 - Step 5: Solve for x
x = 372,233,698,989.18/607,531.40 - Step 6: Final answer
x = 612,698.70
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1.5x scale
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.