Finding the Fourth Proportional to 1,276,211.97, 1,758,749.88 and 913,005.18
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Solution
The fourth proportional to 1,276,211.97, 1,758,749.88 and 913,005.18 is: 1,258,213.99
Step by Step Solution
- Step 1: Write the proportion equation
1,276,211.97 : 1,758,749.88 = 913,005.18 : x - Step 2: Convert to fraction form
1,276,211.97/1,758,749.88 = 913,005.18/x - Step 3: Cross multiply
1,276,211.97x = 1,758,749.88 × 913,005.18 - Step 4: Simplify right side
1,276,211.97x = 1,605,747,750,764.38 - Step 5: Solve for x
x = 1,605,747,750,764.38/1,276,211.97 - Step 6: Final answer
x = 1,258,213.99
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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.