Finding the Fourth Proportional to 1,587,797.69, 2,191,149.01 and 862,651.36
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Solution
The fourth proportional to 1,587,797.69, 2,191,149.01 and 862,651.36 is: 1,190,452.47
Step by Step Solution
- Step 1: Write the proportion equation
1,587,797.69 : 2,191,149.01 = 862,651.36 : x - Step 2: Convert to fraction form
1,587,797.69/2,191,149.01 = 862,651.36/x - Step 3: Cross multiply
1,587,797.69x = 2,191,149.01 × 862,651.36 - Step 4: Simplify right side
1,587,797.69x = 1,890,197,669,125.90 - Step 5: Solve for x
x = 1,890,197,669,125.90/1,587,797.69 - Step 6: Final answer
x = 1,190,452.47
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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.