Finding the Fourth Proportional to 1,603,461.12, 2,212,160.43 and 915,171.18
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Solution
The fourth proportional to 1,603,461.12, 2,212,160.43 and 915,171.18 is: 1,262,584.70
Step by Step Solution
- Step 1: Write the proportion equation
1,603,461.12 : 2,212,160.43 = 915,171.18 : x - Step 2: Convert to fraction form
1,603,461.12/2,212,160.43 = 915,171.18/x - Step 3: Cross multiply
1,603,461.12x = 2,212,160.43 × 915,171.18 - Step 4: Simplify right side
1,603,461.12x = 2,024,505,471,072.41 - Step 5: Solve for x
x = 2,024,505,471,072.41/1,603,461.12 - Step 6: Final answer
x = 1,262,584.70
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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.