Finding the Fourth Proportional to 539,523.80, 809,285.70 and 290,691.80
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Solution
The fourth proportional to 539,523.80, 809,285.70 and 290,691.80 is: 436,037.70
Step by Step Solution
- Step 1: Write the proportion equation
539,523.80 : 809,285.70 = 290,691.80 : x - Step 2: Convert to fraction form
539,523.80/809,285.70 = 290,691.80/x - Step 3: Cross multiply
539,523.80x = 809,285.70 × 290,691.80 - Step 4: Simplify right side
539,523.80x = 235,252,716,847.26 - Step 5: Solve for x
x = 235,252,716,847.26/539,523.80 - Step 6: Final answer
x = 436,037.70
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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.