Finding the Fourth Proportional to 1,053,821.44, 1,581,028.08 and 423,178.12
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Solution
The fourth proportional to 1,053,821.44, 1,581,028.08 and 423,178.12 is: 634,886.01
Step by Step Solution
- Step 1: Write the proportion equation
1,053,821.44 : 1,581,028.08 = 423,178.12 : x - Step 2: Convert to fraction form
1,053,821.44/1,581,028.08 = 423,178.12/x - Step 3: Cross multiply
1,053,821.44x = 1,581,028.08 × 423,178.12 - Step 4: Simplify right side
1,053,821.44x = 669,056,490,561.61 - Step 5: Solve for x
x = 669,056,490,561.61/1,053,821.44 - Step 6: Final answer
x = 634,886.01
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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.