Finding the Fourth Proportional to 540,309.38, 809,739.63 and 420,510.99
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Solution
The fourth proportional to 540,309.38, 809,739.63 and 420,510.99 is: 630,202.67
Step by Step Solution
- Step 1: Write the proportion equation
540,309.38 : 809,739.63 = 420,510.99 : x - Step 2: Convert to fraction form
540,309.38/809,739.63 = 420,510.99/x - Step 3: Cross multiply
540,309.38x = 809,739.63 × 420,510.99 - Step 4: Simplify right side
540,309.38x = 340,504,413,453.53 - Step 5: Solve for x
x = 340,504,413,453.53/540,309.38 - Step 6: Final answer
x = 630,202.67
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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.