Finding the Fourth Proportional to 586,672.26, 809,608.05 and 318,400.26
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Solution
The fourth proportional to 586,672.26, 809,608.05 and 318,400.26 is: 439,392.54
Step by Step Solution
- Step 1: Write the proportion equation
586,672.26 : 809,608.05 = 318,400.26 : x - Step 2: Convert to fraction form
586,672.26/809,608.05 = 318,400.26/x - Step 3: Cross multiply
586,672.26x = 809,608.05 × 318,400.26 - Step 4: Simplify right side
586,672.26x = 257,779,413,618.09 - Step 5: Solve for x
x = 257,779,413,618.09/586,672.26 - Step 6: Final answer
x = 439,392.54
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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.