Finding the Fourth Proportional to 2,089,773.76, 2,883,885.24 and 1,218,643.60
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Solution
The fourth proportional to 2,089,773.76, 2,883,885.24 and 1,218,643.60 is: 1,681,726.68
Step by Step Solution
- Step 1: Write the proportion equation
2,089,773.76 : 2,883,885.24 = 1,218,643.60 : x - Step 2: Convert to fraction form
2,089,773.76/2,883,885.24 = 1,218,643.60/x - Step 3: Cross multiply
2,089,773.76x = 2,883,885.24 × 1,218,643.60 - Step 4: Simplify right side
2,089,773.76x = 3,514,428,290,860.46 - Step 5: Solve for x
x = 3,514,428,290,860.46/2,089,773.76 - Step 6: Final answer
x = 1,681,726.68
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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.