Finding the Fourth Proportional to 1,139,157.36, 1,571,296.49 and 730,612.09
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Solution
The fourth proportional to 1,139,157.36, 1,571,296.49 and 730,612.09 is: 1,007,769.64
Step by Step Solution
- Step 1: Write the proportion equation
1,139,157.36 : 1,571,296.49 = 730,612.09 : x - Step 2: Convert to fraction form
1,139,157.36/1,571,296.49 = 730,612.09/x - Step 3: Cross multiply
1,139,157.36x = 1,571,296.49 × 730,612.09 - Step 4: Simplify right side
1,139,157.36x = 1,148,008,208,915.50 - Step 5: Solve for x
x = 1,148,008,208,915.50/1,139,157.36 - Step 6: Final answer
x = 1,007,769.64
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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.