Finding the Fourth Proportional to 760,693.99, 1,049,828.12 and 421,162.24
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Solution
The fourth proportional to 760,693.99, 1,049,828.12 and 421,162.24 is: 581,242.88
Step by Step Solution
- Step 1: Write the proportion equation
760,693.99 : 1,049,828.12 = 421,162.24 : x - Step 2: Convert to fraction form
760,693.99/1,049,828.12 = 421,162.24/x - Step 3: Cross multiply
760,693.99x = 1,049,828.12 × 421,162.24 - Step 4: Simplify right side
760,693.99x = 442,147,962,634.19 - Step 5: Solve for x
x = 442,147,962,634.19/760,693.99 - Step 6: Final answer
x = 581,242.88
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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.