Finding the Fourth Proportional to 713,471.76, 984,590.71 and 391,174.99
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Solution
The fourth proportional to 713,471.76, 984,590.71 and 391,174.99 is: 539,821.31
Step by Step Solution
- Step 1: Write the proportion equation
713,471.76 : 984,590.71 = 391,174.99 : x - Step 2: Convert to fraction form
713,471.76/984,590.71 = 391,174.99/x - Step 3: Cross multiply
713,471.76x = 984,590.71 × 391,174.99 - Step 4: Simplify right side
713,471.76x = 385,147,257,698.93 - Step 5: Solve for x
x = 385,147,257,698.93/713,471.76 - Step 6: Final answer
x = 539,821.31
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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.