Finding the Fourth Proportional to 918,757.08, 1,378,130.76 and 319,713.48
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Solution
The fourth proportional to 918,757.08, 1,378,130.76 and 319,713.48 is: 479,568.53
Step by Step Solution
- Step 1: Write the proportion equation
918,757.08 : 1,378,130.76 = 319,713.48 : x - Step 2: Convert to fraction form
918,757.08/1,378,130.76 = 319,713.48/x - Step 3: Cross multiply
918,757.08x = 1,378,130.76 × 319,713.48 - Step 4: Simplify right side
918,757.08x = 440,606,981,174.65 - Step 5: Solve for x
x = 440,606,981,174.65/918,757.08 - Step 6: Final answer
x = 479,568.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.