Finding the Fourth Proportional to 481,390.87, 722,237.36 and 289,486.17
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Solution
The fourth proportional to 481,390.87, 722,237.36 and 289,486.17 is: 434,320.09
Step by Step Solution
- Step 1: Write the proportion equation
481,390.87 : 722,237.36 = 289,486.17 : x - Step 2: Convert to fraction form
481,390.87/722,237.36 = 289,486.17/x - Step 3: Cross multiply
481,390.87x = 722,237.36 × 289,486.17 - Step 4: Simplify right side
481,390.87x = 209,077,727,177.31 - Step 5: Solve for x
x = 209,077,727,177.31/481,390.87 - Step 6: Final answer
x = 434,320.09
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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.