Finding the Fourth Proportional to 1,985,135.80, 2,739,352.62 and 1,079,698.36
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Solution
The fourth proportional to 1,985,135.80, 2,739,352.62 and 1,079,698.36 is: 1,489,910.43
Step by Step Solution
- Step 1: Write the proportion equation
1,985,135.80 : 2,739,352.62 = 1,079,698.36 : x - Step 2: Convert to fraction form
1,985,135.80/2,739,352.62 = 1,079,698.36/x - Step 3: Cross multiply
1,985,135.80x = 2,739,352.62 × 1,079,698.36 - Step 4: Simplify right side
1,985,135.80x = 2,957,674,531,275.70 - Step 5: Solve for x
x = 2,957,674,531,275.70/1,985,135.80 - Step 6: Final answer
x = 1,489,910.43
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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.