Finding the Fourth Proportional to 1,835,664.12, 2,533,578.78 and 1,172,952.09
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Solution
The fourth proportional to 1,835,664.12, 2,533,578.78 and 1,172,952.09 is: 1,618,905.39
Step by Step Solution
- Step 1: Write the proportion equation
1,835,664.12 : 2,533,578.78 = 1,172,952.09 : x - Step 2: Convert to fraction form
1,835,664.12/2,533,578.78 = 1,172,952.09/x - Step 3: Cross multiply
1,835,664.12x = 2,533,578.78 × 1,172,952.09 - Step 4: Simplify right side
1,835,664.12x = 2,971,766,529,579.22 - Step 5: Solve for x
x = 2,971,766,529,579.22/1,835,664.12 - Step 6: Final answer
x = 1,618,905.39
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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.