Finding the Fourth Proportional to 1,587,622.11, 2,190,933.68 and 862,475.28
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Solution
The fourth proportional to 1,587,622.11, 2,190,933.68 and 862,475.28 is: 1,190,224.12
Step by Step Solution
- Step 1: Write the proportion equation
1,587,622.11 : 2,190,933.68 = 862,475.28 : x - Step 2: Convert to fraction form
1,587,622.11/2,190,933.68 = 862,475.28/x - Step 3: Cross multiply
1,587,622.11x = 2,190,933.68 × 862,475.28 - Step 4: Simplify right side
1,587,622.11x = 1,889,626,134,807.05 - Step 5: Solve for x
x = 1,889,626,134,807.05/1,587,622.11 - Step 6: Final answer
x = 1,190,224.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.