Finding the Fourth Proportional to 690,805.44, 1,036,494.96 and 330,794.88
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Solution
The fourth proportional to 690,805.44, 1,036,494.96 and 330,794.88 is: 496,329.66
Step by Step Solution
- Step 1: Write the proportion equation
690,805.44 : 1,036,494.96 = 330,794.88 : x - Step 2: Convert to fraction form
690,805.44/1,036,494.96 = 330,794.88/x - Step 3: Cross multiply
690,805.44x = 1,036,494.96 × 330,794.88 - Step 4: Simplify right side
690,805.44x = 342,867,225,913.81 - Step 5: Solve for x
x = 342,867,225,913.81/690,805.44 - Step 6: Final answer
x = 496,329.66
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1.5x scale
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.