Finding the Fourth Proportional to 760,496.74, 1,049,485.52 and 420,964.99
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Solution
The fourth proportional to 760,496.74, 1,049,485.52 and 420,964.99 is: 580,931.69
Step by Step Solution
- Step 1: Write the proportion equation
760,496.74 : 1,049,485.52 = 420,964.99 : x - Step 2: Convert to fraction form
760,496.74/1,049,485.52 = 420,964.99/x - Step 3: Cross multiply
760,496.74x = 1,049,485.52 × 420,964.99 - Step 4: Simplify right side
760,496.74x = 441,796,654,079.69 - Step 5: Solve for x
x = 441,796,654,079.69/760,496.74 - Step 6: Final answer
x = 580,931.69
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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.