Finding the Fourth Proportional to 1,540,074.40, 2,125,216.73 and 842,217.50
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Solution
The fourth proportional to 1,540,074.40, 2,125,216.73 and 842,217.50 is: 1,162,213.15
Step by Step Solution
- Step 1: Write the proportion equation
1,540,074.40 : 2,125,216.73 = 842,217.50 : x - Step 2: Convert to fraction form
1,540,074.40/2,125,216.73 = 842,217.50/x - Step 3: Cross multiply
1,540,074.40x = 2,125,216.73 × 842,217.50 - Step 4: Simplify right side
1,540,074.40x = 1,789,894,721,574.26 - Step 5: Solve for x
x = 1,789,894,721,574.26/1,540,074.40 - Step 6: Final answer
x = 1,162,213.15
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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.