Finding the Fourth Proportional to 886,785.09, 1,330,310.48 and 287,547.09
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Solution
The fourth proportional to 886,785.09, 1,330,310.48 and 287,547.09 is: 431,363.71
Step by Step Solution
- Step 1: Write the proportion equation
886,785.09 : 1,330,310.48 = 287,547.09 : x - Step 2: Convert to fraction form
886,785.09/1,330,310.48 = 287,547.09/x - Step 3: Cross multiply
886,785.09x = 1,330,310.48 × 287,547.09 - Step 4: Simplify right side
886,785.09x = 382,526,905,882.77 - Step 5: Solve for x
x = 382,526,905,882.77/886,785.09 - Step 6: Final answer
x = 431,363.71
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1.5x scale
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.