Finding the Fourth Proportional to 2,842,589.88, 3,922,784.28 and 1,553,430.42
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Solution
The fourth proportional to 2,842,589.88, 3,922,784.28 and 1,553,430.42 is: 2,143,739.58
Step by Step Solution
- Step 1: Write the proportion equation
2,842,589.88 : 3,922,784.28 = 1,553,430.42 : x - Step 2: Convert to fraction form
2,842,589.88/3,922,784.28 = 1,553,430.42/x - Step 3: Cross multiply
2,842,589.88x = 3,922,784.28 × 1,553,430.42 - Step 4: Simplify right side
2,842,589.88x = 6,093,772,431,649.80 - Step 5: Solve for x
x = 6,093,772,431,649.80/2,842,589.88 - Step 6: Final answer
x = 2,143,739.58
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1.5x scale
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.