Finding the Fourth Proportional to 2,127,625.80, 3,191,438.70 and 1,064,743.80
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Solution
The fourth proportional to 2,127,625.80, 3,191,438.70 and 1,064,743.80 is: 1,597,115.70
Step by Step Solution
- Step 1: Write the proportion equation
2,127,625.80 : 3,191,438.70 = 1,064,743.80 : x - Step 2: Convert to fraction form
2,127,625.80/3,191,438.70 = 1,064,743.80/x - Step 3: Cross multiply
2,127,625.80x = 3,191,438.70 × 1,064,743.80 - Step 4: Simplify right side
2,127,625.80x = 3,398,064,568,905.06 - Step 5: Solve for x
x = 3,398,064,568,905.06/2,127,625.80 - Step 6: Final answer
x = 1,597,115.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.