Finding the Fourth Proportional to 1,986,431.51, 2,979,674.61 and 566,487.74
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Solution
The fourth proportional to 1,986,431.51, 2,979,674.61 and 566,487.74 is: 849,739.41
Step by Step Solution
- Step 1: Write the proportion equation
1,986,431.51 : 2,979,674.61 = 566,487.74 : x - Step 2: Convert to fraction form
1,986,431.51/2,979,674.61 = 566,487.74/x - Step 3: Cross multiply
1,986,431.51x = 2,979,674.61 × 566,487.74 - Step 4: Simplify right side
1,986,431.51x = 1,687,949,141,079.14 - Step 5: Solve for x
x = 1,687,949,141,079.14/1,986,431.51 - Step 6: Final answer
x = 849,739.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.