Finding the Fourth Proportional to 675,314.12, 932,220.42 and 420,791.08
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Solution
The fourth proportional to 675,314.12, 932,220.42 and 420,791.08 is: 580,870.48
Step by Step Solution
- Step 1: Write the proportion equation
675,314.12 : 932,220.42 = 420,791.08 : x - Step 2: Convert to fraction form
675,314.12/932,220.42 = 420,791.08/x - Step 3: Cross multiply
675,314.12x = 932,220.42 × 420,791.08 - Step 4: Simplify right side
675,314.12x = 392,270,037,329.85 - Step 5: Solve for x
x = 392,270,037,329.85/675,314.12 - Step 6: Final answer
x = 580,870.48
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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.