Finding the Fourth Proportional to 503,377.20, 694,649.52 and 288,643.68
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Solution
The fourth proportional to 503,377.20, 694,649.52 and 288,643.68 is: 398,321.96
Step by Step Solution
- Step 1: Write the proportion equation
503,377.20 : 694,649.52 = 288,643.68 : x - Step 2: Convert to fraction form
503,377.20/694,649.52 = 288,643.68/x - Step 3: Cross multiply
503,377.20x = 694,649.52 × 288,643.68 - Step 4: Simplify right side
503,377.20x = 200,506,193,763.03 - Step 5: Solve for x
x = 200,506,193,763.03/503,377.20 - Step 6: Final answer
x = 398,321.96
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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.