Finding the Fourth Proportional to 1,129,072.68, 1,558,116.36 and 612,826.58
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Solution
The fourth proportional to 1,129,072.68, 1,558,116.36 and 612,826.58 is: 845,698.54
Step by Step Solution
- Step 1: Write the proportion equation
1,129,072.68 : 1,558,116.36 = 612,826.58 : x - Step 2: Convert to fraction form
1,129,072.68/1,558,116.36 = 612,826.58/x - Step 3: Cross multiply
1,129,072.68x = 1,558,116.36 × 612,826.58 - Step 4: Simplify right side
1,129,072.68x = 954,855,120,140.85 - Step 5: Solve for x
x = 954,855,120,140.85/1,129,072.68 - Step 6: Final answer
x = 845,698.54
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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.