Finding the Fourth Proportional to 713,403.99, 984,497.24 and 391,107.15
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Solution
The fourth proportional to 713,403.99, 984,497.24 and 391,107.15 is: 539,727.72
Step by Step Solution
- Step 1: Write the proportion equation
713,403.99 : 984,497.24 = 391,107.15 : x - Step 2: Convert to fraction form
713,403.99/984,497.24 = 391,107.15/x - Step 3: Cross multiply
713,403.99x = 984,497.24 × 391,107.15 - Step 4: Simplify right side
713,403.99x = 385,043,910,697.03 - Step 5: Solve for x
x = 385,043,910,697.03/713,403.99 - Step 6: Final answer
x = 539,727.72
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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.