Finding the Fourth Proportional to 1,660,861.59, 2,291,988.96 and 896,915.07
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Solution
The fourth proportional to 1,660,861.59, 2,291,988.96 and 896,915.07 is: 1,237,742.78
Step by Step Solution
- Step 1: Write the proportion equation
1,660,861.59 : 2,291,988.96 = 896,915.07 : x - Step 2: Convert to fraction form
1,660,861.59/2,291,988.96 = 896,915.07/x - Step 3: Cross multiply
1,660,861.59x = 2,291,988.96 × 896,915.07 - Step 4: Simplify right side
1,660,861.59x = 2,055,719,438,497.63 - Step 5: Solve for x
x = 2,055,719,438,497.63/1,660,861.59 - Step 6: Final answer
x = 1,237,742.78
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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.