Finding the Fourth Proportional to 553,529.80, 830,294.70 and 382,287.70
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Solution
The fourth proportional to 553,529.80, 830,294.70 and 382,287.70 is: 573,431.55
Step by Step Solution
- Step 1: Write the proportion equation
553,529.80 : 830,294.70 = 382,287.70 : x - Step 2: Convert to fraction form
553,529.80/830,294.70 = 382,287.70/x - Step 3: Cross multiply
553,529.80x = 830,294.70 × 382,287.70 - Step 4: Simplify right side
553,529.80x = 317,411,451,185.19 - Step 5: Solve for x
x = 317,411,451,185.19/553,529.80 - Step 6: Final answer
x = 573,431.55
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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.