Finding the Fourth Proportional to 670,722.63, 1,006,086.11 and 420,879.75
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Solution
The fourth proportional to 670,722.63, 1,006,086.11 and 420,879.75 is: 631,320.98
Step by Step Solution
- Step 1: Write the proportion equation
670,722.63 : 1,006,086.11 = 420,879.75 : x - Step 2: Convert to fraction form
670,722.63/1,006,086.11 = 420,879.75/x - Step 3: Cross multiply
670,722.63x = 1,006,086.11 × 420,879.75 - Step 4: Simplify right side
670,722.63x = 423,441,268,350.87 - Step 5: Solve for x
x = 423,441,268,350.87/670,722.63 - Step 6: Final answer
x = 631,320.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.