Finding the Fourth Proportional to 1,486,354.05, 2,229,093.68 and 421,489.17
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Solution
The fourth proportional to 1,486,354.05, 2,229,093.68 and 421,489.17 is: 632,109.72
Step by Step Solution
- Step 1: Write the proportion equation
1,486,354.05 : 2,229,093.68 = 421,489.17 : x - Step 2: Convert to fraction form
1,486,354.05/2,229,093.68 = 421,489.17/x - Step 3: Cross multiply
1,486,354.05x = 2,229,093.68 × 421,489.17 - Step 4: Simplify right side
1,486,354.05x = 939,538,842,928.00 - Step 5: Solve for x
x = 939,538,842,928.00/1,486,354.05 - Step 6: Final answer
x = 632,109.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.