Finding the Fourth Proportional to 760,691.74, 1,049,825.02 and 421,159.99
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Solution
The fourth proportional to 760,691.74, 1,049,825.02 and 421,159.99 is: 581,239.77
Step by Step Solution
- Step 1: Write the proportion equation
760,691.74 : 1,049,825.02 = 421,159.99 : x - Step 2: Convert to fraction form
760,691.74/1,049,825.02 = 421,159.99/x - Step 3: Cross multiply
760,691.74x = 1,049,825.02 × 421,159.99 - Step 4: Simplify right side
760,691.74x = 442,144,291,247.49 - Step 5: Solve for x
x = 442,144,291,247.49/760,691.74 - Step 6: Final answer
x = 581,239.77
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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.