Finding the Fourth Proportional to 454,239.40, 681,359.10 and 286,277.80
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Solution
The fourth proportional to 454,239.40, 681,359.10 and 286,277.80 is: 429,416.70
Step by Step Solution
- Step 1: Write the proportion equation
454,239.40 : 681,359.10 = 286,277.80 : x - Step 2: Convert to fraction form
454,239.40/681,359.10 = 286,277.80/x - Step 3: Cross multiply
454,239.40x = 681,359.10 × 286,277.80 - Step 4: Simplify right side
454,239.40x = 195,057,984,157.98 - Step 5: Solve for x
x = 195,057,984,157.98/454,239.40 - Step 6: Final answer
x = 429,416.70
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Similar ratio
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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.