Finding the Fourth Proportional to 521,602.20, 782,403.30 and 284,815.68
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Solution
The fourth proportional to 521,602.20, 782,403.30 and 284,815.68 is: 427,223.52
Step by Step Solution
- Step 1: Write the proportion equation
521,602.20 : 782,403.30 = 284,815.68 : x - Step 2: Convert to fraction form
521,602.20/782,403.30 = 284,815.68/x - Step 3: Cross multiply
521,602.20x = 782,403.30 × 284,815.68 - Step 4: Simplify right side
521,602.20x = 222,840,727,923.74 - Step 5: Solve for x
x = 222,840,727,923.74/521,602.20 - Step 6: Final answer
x = 427,223.52
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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.