Finding the Fourth Proportional to 1,536,673.63, 2,120,788.95 and 1,278,094.37
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Solution
The fourth proportional to 1,536,673.63, 2,120,788.95 and 1,278,094.37 is: 1,763,919.39
Step by Step Solution
- Step 1: Write the proportion equation
1,536,673.63 : 2,120,788.95 = 1,278,094.37 : x - Step 2: Convert to fraction form
1,536,673.63/2,120,788.95 = 1,278,094.37/x - Step 3: Cross multiply
1,536,673.63x = 2,120,788.95 × 1,278,094.37 - Step 4: Simplify right side
1,536,673.63x = 2,710,568,418,305.05 - Step 5: Solve for x
x = 2,710,568,418,305.05/1,536,673.63 - Step 6: Final answer
x = 1,763,919.39
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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.