Finding the Fourth Proportional to 680,793.30, 939,486.60 and 374,863.05
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Solution
The fourth proportional to 680,793.30, 939,486.60 and 374,863.05 is: 517,306.52
Step by Step Solution
- Step 1: Write the proportion equation
680,793.30 : 939,486.60 = 374,863.05 : x - Step 2: Convert to fraction form
680,793.30/939,486.60 = 374,863.05/x - Step 3: Cross multiply
680,793.30x = 939,486.60 × 374,863.05 - Step 4: Simplify right side
680,793.30x = 352,178,812,310.13 - Step 5: Solve for x
x = 352,178,812,310.13/680,793.30 - Step 6: Final answer
x = 517,306.52
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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.