Finding the Fourth Proportional to 1,074,319.08, 1,482,063.36 and 643,851.90
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Solution
The fourth proportional to 1,074,319.08, 1,482,063.36 and 643,851.90 is: 888,217.78
Step by Step Solution
- Step 1: Write the proportion equation
1,074,319.08 : 1,482,063.36 = 643,851.90 : x - Step 2: Convert to fraction form
1,074,319.08/1,482,063.36 = 643,851.90/x - Step 3: Cross multiply
1,074,319.08x = 1,482,063.36 × 643,851.90 - Step 4: Simplify right side
1,074,319.08x = 954,229,310,256.38 - Step 5: Solve for x
x = 954,229,310,256.38/1,074,319.08 - Step 6: Final answer
x = 888,217.78
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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.