Finding the Fourth Proportional to 1,378,386.19, 2,067,708.93 and 405,751.11
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Solution
The fourth proportional to 1,378,386.19, 2,067,708.93 and 405,751.11 is: 608,664.83
Step by Step Solution
- Step 1: Write the proportion equation
1,378,386.19 : 2,067,708.93 = 405,751.11 : x - Step 2: Convert to fraction form
1,378,386.19/2,067,708.93 = 405,751.11/x - Step 3: Cross multiply
1,378,386.19x = 2,067,708.93 × 405,751.11 - Step 4: Simplify right side
1,378,386.19x = 838,975,193,504.41 - Step 5: Solve for x
x = 838,975,193,504.41/1,378,386.19 - Step 6: Final answer
x = 608,664.83
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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.