Finding the Fourth Proportional to 503,332.30, 694,628.52 and 288,486.18
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Solution
The fourth proportional to 503,332.30, 694,628.52 and 288,486.18 is: 398,128.09
Step by Step Solution
- Step 1: Write the proportion equation
503,332.30 : 694,628.52 = 288,486.18 : x - Step 2: Convert to fraction form
503,332.30/694,628.52 = 288,486.18/x - Step 3: Cross multiply
503,332.30x = 694,628.52 × 288,486.18 - Step 4: Simplify right side
503,332.30x = 200,390,728,253.85 - Step 5: Solve for x
x = 200,390,728,253.85/503,332.30 - Step 6: Final answer
x = 398,128.09
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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.