Finding the Fourth Proportional to 1,383,213.02, 2,072,605.20 and 909,344.80
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Solution
The fourth proportional to 1,383,213.02, 2,072,605.20 and 909,344.80 is: 1,362,561.47
Step by Step Solution
- Step 1: Write the proportion equation
1,383,213.02 : 2,072,605.20 = 909,344.80 : x - Step 2: Convert to fraction form
1,383,213.02/2,072,605.20 = 909,344.80/x - Step 3: Cross multiply
1,383,213.02x = 2,072,605.20 × 909,344.80 - Step 4: Simplify right side
1,383,213.02x = 1,884,712,761,072.96 - Step 5: Solve for x
x = 1,884,712,761,072.96/1,383,213.02 - Step 6: Final answer
x = 1,362,561.47
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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.