Finding the Fourth Proportional to 723,286.26, 998,133.39 and 400,988.07
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Solution
The fourth proportional to 723,286.26, 998,133.39 and 400,988.07 is: 553,362.62
Step by Step Solution
- Step 1: Write the proportion equation
723,286.26 : 998,133.39 = 400,988.07 : x - Step 2: Convert to fraction form
723,286.26/998,133.39 = 400,988.07/x - Step 3: Cross multiply
723,286.26x = 998,133.39 × 400,988.07 - Step 4: Simplify right side
723,286.26x = 400,239,581,658.66 - Step 5: Solve for x
x = 400,239,581,658.66/723,286.26 - Step 6: Final answer
x = 553,362.62
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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.