Finding the Fourth Proportional to 1,290,326.68, 1,935,357.18 and 391,732.12
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Solution
The fourth proportional to 1,290,326.68, 1,935,357.18 and 391,732.12 is: 587,557.85
Step by Step Solution
- Step 1: Write the proportion equation
1,290,326.68 : 1,935,357.18 = 391,732.12 : x - Step 2: Convert to fraction form
1,290,326.68/1,935,357.18 = 391,732.12/x - Step 3: Cross multiply
1,290,326.68x = 1,935,357.18 × 391,732.12 - Step 4: Simplify right side
1,290,326.68x = 758,141,571,078.62 - Step 5: Solve for x
x = 758,141,571,078.62/1,290,326.68 - Step 6: Final answer
x = 587,557.85
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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.