Finding the Fourth Proportional to 426,830.80, 638,863.80 and 302,414.80
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Solution
The fourth proportional to 426,830.80, 638,863.80 and 302,414.80 is: 452,642.75
Step by Step Solution
- Step 1: Write the proportion equation
426,830.80 : 638,863.80 = 302,414.80 : x - Step 2: Convert to fraction form
426,830.80/638,863.80 = 302,414.80/x - Step 3: Cross multiply
426,830.80x = 638,863.80 × 302,414.80 - Step 4: Simplify right side
426,830.80x = 193,201,868,304.24 - Step 5: Solve for x
x = 193,201,868,304.24/426,830.80 - Step 6: Final answer
x = 452,642.75
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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.