Finding the Fourth Proportional to 3,990,541.86, 5,986,698.12 and 1,150,432.38
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Solution
The fourth proportional to 3,990,541.86, 5,986,698.12 and 1,150,432.38 is: 1,725,903.80
Step by Step Solution
- Step 1: Write the proportion equation
3,990,541.86 : 5,986,698.12 = 1,150,432.38 : x - Step 2: Convert to fraction form
3,990,541.86/5,986,698.12 = 1,150,432.38/x - Step 3: Cross multiply
3,990,541.86x = 5,986,698.12 × 1,150,432.38 - Step 4: Simplify right side
3,990,541.86x = 6,887,291,366,533.13 - Step 5: Solve for x
x = 6,887,291,366,533.13/3,990,541.86 - Step 6: Final answer
x = 1,725,903.80
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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.