Finding the Fourth Proportional to 775,470.99, 1,070,131.26 and 431,305.91
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Solution
The fourth proportional to 775,470.99, 1,070,131.26 and 431,305.91 is: 595,191.74
Step by Step Solution
- Step 1: Write the proportion equation
775,470.99 : 1,070,131.26 = 431,305.91 : x - Step 2: Convert to fraction form
775,470.99/1,070,131.26 = 431,305.91/x - Step 3: Cross multiply
775,470.99x = 1,070,131.26 × 431,305.91 - Step 4: Simplify right side
775,470.99x = 461,553,931,563.09 - Step 5: Solve for x
x = 461,553,931,563.09/775,470.99 - Step 6: Final answer
x = 595,191.74
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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.