Finding the Fourth Proportional to 500,379.99, 689,837.97 and 316,527.09
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Solution
The fourth proportional to 500,379.99, 689,837.97 and 316,527.09 is: 436,373.18
Step by Step Solution
- Step 1: Write the proportion equation
500,379.99 : 689,837.97 = 316,527.09 : x - Step 2: Convert to fraction form
500,379.99/689,837.97 = 316,527.09/x - Step 3: Cross multiply
500,379.99x = 689,837.97 × 316,527.09 - Step 4: Simplify right side
500,379.99x = 218,352,405,215.61 - Step 5: Solve for x
x = 218,352,405,215.61/500,379.99 - Step 6: Final answer
x = 436,373.18
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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.