Finding the Fourth Proportional to 1,642,603.68, 2,266,838.78 and 907,605.32
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Solution
The fourth proportional to 1,642,603.68, 2,266,838.78 and 907,605.32 is: 1,252,520.59
Step by Step Solution
- Step 1: Write the proportion equation
1,642,603.68 : 2,266,838.78 = 907,605.32 : x - Step 2: Convert to fraction form
1,642,603.68/2,266,838.78 = 907,605.32/x - Step 3: Cross multiply
1,642,603.68x = 2,266,838.78 × 907,605.32 - Step 4: Simplify right side
1,642,603.68x = 2,057,394,936,310.31 - Step 5: Solve for x
x = 2,057,394,936,310.31/1,642,603.68 - Step 6: Final answer
x = 1,252,520.59
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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.