Finding the Fourth Proportional to 713,404.81, 984,498.37 and 391,107.99
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Solution
The fourth proportional to 713,404.81, 984,498.37 and 391,107.99 is: 539,728.88
Step by Step Solution
- Step 1: Write the proportion equation
713,404.81 : 984,498.37 = 391,107.99 : x - Step 2: Convert to fraction form
713,404.81/984,498.37 = 391,107.99/x - Step 3: Cross multiply
713,404.81x = 984,498.37 × 391,107.99 - Step 4: Simplify right side
713,404.81x = 385,045,178,648.98 - Step 5: Solve for x
x = 385,045,178,648.98/713,404.81 - Step 6: Final answer
x = 539,728.88
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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.