Finding the Fourth Proportional to 2,129,587.68, 2,937,770.40 and 1,269,541.92
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Solution
The fourth proportional to 2,129,587.68, 2,937,770.40 and 1,269,541.92 is: 1,751,335.58
Step by Step Solution
- Step 1: Write the proportion equation
2,129,587.68 : 2,937,770.40 = 1,269,541.92 : x - Step 2: Convert to fraction form
2,129,587.68/2,937,770.40 = 1,269,541.92/x - Step 3: Cross multiply
2,129,587.68x = 2,937,770.40 × 1,269,541.92 - Step 4: Simplify right side
2,129,587.68x = 3,729,622,674,135.17 - Step 5: Solve for x
x = 3,729,622,674,135.17/2,129,587.68 - Step 6: Final answer
x = 1,751,335.58
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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.