Finding the Fourth Proportional to 1,911,169.19, 2,637,379.37 and 1,039,974.17
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Solution
The fourth proportional to 1,911,169.19, 2,637,379.37 and 1,039,974.17 is: 1,435,145.79
Step by Step Solution
- Step 1: Write the proportion equation
1,911,169.19 : 2,637,379.37 = 1,039,974.17 : x - Step 2: Convert to fraction form
1,911,169.19/2,637,379.37 = 1,039,974.17/x - Step 3: Cross multiply
1,911,169.19x = 2,637,379.37 × 1,039,974.17 - Step 4: Simplify right side
1,911,169.19x = 2,742,806,419,689.32 - Step 5: Solve for x
x = 2,742,806,419,689.32/1,911,169.19 - Step 6: Final answer
x = 1,435,145.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.