Finding the Fourth Proportional to 910,638.20, 1,366,023.51 and 349,672.70
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Solution
The fourth proportional to 910,638.20, 1,366,023.51 and 349,672.70 is: 524,534.47
Step by Step Solution
- Step 1: Write the proportion equation
910,638.20 : 1,366,023.51 = 349,672.70 : x - Step 2: Convert to fraction form
910,638.20/1,366,023.51 = 349,672.70/x - Step 3: Cross multiply
910,638.20x = 1,366,023.51 × 349,672.70 - Step 4: Simplify right side
910,638.20x = 477,661,122,175.06 - Step 5: Solve for x
x = 477,661,122,175.06/910,638.20 - Step 6: Final answer
x = 524,534.47
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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.