Finding the Fourth Proportional to 1,286,948.16, 1,776,072.60 and 743,106.96
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Solution
The fourth proportional to 1,286,948.16, 1,776,072.60 and 743,106.96 is: 1,025,536.19
Step by Step Solution
- Step 1: Write the proportion equation
1,286,948.16 : 1,776,072.60 = 743,106.96 : x - Step 2: Convert to fraction form
1,286,948.16/1,776,072.60 = 743,106.96/x - Step 3: Cross multiply
1,286,948.16x = 1,776,072.60 × 743,106.96 - Step 4: Simplify right side
1,286,948.16x = 1,319,811,910,525.30 - Step 5: Solve for x
x = 1,319,811,910,525.30/1,286,948.16 - Step 6: Final answer
x = 1,025,536.19
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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.