Finding the Fourth Proportional to 496,020.10, 684,477.09 and 278,216.80
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Solution
The fourth proportional to 496,020.10, 684,477.09 and 278,216.80 is: 383,921.99
Step by Step Solution
- Step 1: Write the proportion equation
496,020.10 : 684,477.09 = 278,216.80 : x - Step 2: Convert to fraction form
496,020.10/684,477.09 = 278,216.80/x - Step 3: Cross multiply
496,020.10x = 684,477.09 × 278,216.80 - Step 4: Simplify right side
496,020.10x = 190,433,025,653.11 - Step 5: Solve for x
x = 190,433,025,653.11/496,020.10 - Step 6: Final answer
x = 383,921.99
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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.