Finding the Fourth Proportional to 1,587,198.28, 2,190,349.44 and 862,052.80
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Solution
The fourth proportional to 1,587,198.28, 2,190,349.44 and 862,052.80 is: 1,189,641.45
Step by Step Solution
- Step 1: Write the proportion equation
1,587,198.28 : 2,190,349.44 = 862,052.80 : x - Step 2: Convert to fraction form
1,587,198.28/2,190,349.44 = 862,052.80/x - Step 3: Cross multiply
1,587,198.28x = 2,190,349.44 × 862,052.80 - Step 4: Simplify right side
1,587,198.28x = 1,888,196,867,730.43 - Step 5: Solve for x
x = 1,888,196,867,730.43/1,587,198.28 - Step 6: Final answer
x = 1,189,641.45
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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.