Finding the Fourth Proportional to 719,479.68, 992,855.88 and 397,182.84
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Solution
The fourth proportional to 719,479.68, 992,855.88 and 397,182.84 is: 548,097.92
Step by Step Solution
- Step 1: Write the proportion equation
719,479.68 : 992,855.88 = 397,182.84 : x - Step 2: Convert to fraction form
719,479.68/992,855.88 = 397,182.84/x - Step 3: Cross multiply
719,479.68x = 992,855.88 × 397,182.84 - Step 4: Simplify right side
719,479.68x = 394,345,318,129.10 - Step 5: Solve for x
x = 394,345,318,129.10/719,479.68 - Step 6: Final answer
x = 548,097.92
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1.5x scale
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.