Finding the Fourth Proportional to 1,447,748.21, 2,171,637.69 and 436,879.05
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Solution
The fourth proportional to 1,447,748.21, 2,171,637.69 and 436,879.05 is: 655,323.21
Step by Step Solution
- Step 1: Write the proportion equation
1,447,748.21 : 2,171,637.69 = 436,879.05 : x - Step 2: Convert to fraction form
1,447,748.21/2,171,637.69 = 436,879.05/x - Step 3: Cross multiply
1,447,748.21x = 2,171,637.69 × 436,879.05 - Step 4: Simplify right side
1,447,748.21x = 948,743,010,951.39 - Step 5: Solve for x
x = 948,743,010,951.39/1,447,748.21 - Step 6: Final answer
x = 655,323.21
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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.