Finding the Fourth Proportional to 503,647.28, 694,157.04 and 438,711.62
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Solution
The fourth proportional to 503,647.28, 694,157.04 and 438,711.62 is: 604,658.80
Step by Step Solution
- Step 1: Write the proportion equation
503,647.28 : 694,157.04 = 438,711.62 : x - Step 2: Convert to fraction form
503,647.28/694,157.04 = 438,711.62/x - Step 3: Cross multiply
503,647.28x = 694,157.04 × 438,711.62 - Step 4: Simplify right side
503,647.28x = 304,534,759,552.81 - Step 5: Solve for x
x = 304,534,759,552.81/503,647.28 - Step 6: Final answer
x = 604,658.80
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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.