Finding the Fourth Proportional to 1,338,615.98, 2,008,721.84 and 485,754.18
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Solution
The fourth proportional to 1,338,615.98, 2,008,721.84 and 485,754.18 is: 728,920.80
Step by Step Solution
- Step 1: Write the proportion equation
1,338,615.98 : 2,008,721.84 = 485,754.18 : x - Step 2: Convert to fraction form
1,338,615.98/2,008,721.84 = 485,754.18/x - Step 3: Cross multiply
1,338,615.98x = 2,008,721.84 × 485,754.18 - Step 4: Simplify right side
1,338,615.98x = 975,745,027,808.52 - Step 5: Solve for x
x = 975,745,027,808.52/1,338,615.98 - Step 6: Final answer
x = 728,920.80
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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.