Finding the Fourth Proportional to 472,475.51, 708,450.37 and 280,427.99
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Solution
The fourth proportional to 472,475.51, 708,450.37 and 280,427.99 is: 420,485.94
Step by Step Solution
- Step 1: Write the proportion equation
472,475.51 : 708,450.37 = 280,427.99 : x - Step 2: Convert to fraction form
472,475.51/708,450.37 = 280,427.99/x - Step 3: Cross multiply
472,475.51x = 708,450.37 × 280,427.99 - Step 4: Simplify right side
472,475.51x = 198,669,309,030.54 - Step 5: Solve for x
x = 198,669,309,030.54/472,475.51 - Step 6: Final answer
x = 420,485.94
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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.