Finding the Fourth Proportional to 1,549,325.70, 2,138,121.39 and 861,026.57
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Solution
The fourth proportional to 1,549,325.70, 2,138,121.39 and 861,026.57 is: 1,188,245.52
Step by Step Solution
- Step 1: Write the proportion equation
1,549,325.70 : 2,138,121.39 = 861,026.57 : x - Step 2: Convert to fraction form
1,549,325.70/2,138,121.39 = 861,026.57/x - Step 3: Cross multiply
1,549,325.70x = 2,138,121.39 × 861,026.57 - Step 4: Simplify right side
1,549,325.70x = 1,840,979,326,675.33 - Step 5: Solve for x
x = 1,840,979,326,675.33/1,549,325.70 - Step 6: Final answer
x = 1,188,245.52
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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.