Finding the Fourth Proportional to 1,991,049.12, 2,986,585.68 and 495,141.28
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Solution
The fourth proportional to 1,991,049.12, 2,986,585.68 and 495,141.28 is: 742,714.90
Step by Step Solution
- Step 1: Write the proportion equation
1,991,049.12 : 2,986,585.68 = 495,141.28 : x - Step 2: Convert to fraction form
1,991,049.12/2,986,585.68 = 495,141.28/x - Step 3: Cross multiply
1,991,049.12x = 2,986,585.68 × 495,141.28 - Step 4: Simplify right side
1,991,049.12x = 1,478,781,856,424.87 - Step 5: Solve for x
x = 1,478,781,856,424.87/1,991,049.12 - Step 6: Final answer
x = 742,714.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.