Finding the Fourth Proportional to 2,129,708.14, 2,938,974.96 and 1,162,835.44
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Solution
The fourth proportional to 2,129,708.14, 2,938,974.96 and 1,162,835.44 is: 1,604,700.75
Step by Step Solution
- Step 1: Write the proportion equation
2,129,708.14 : 2,938,974.96 = 1,162,835.44 : x - Step 2: Convert to fraction form
2,129,708.14/2,938,974.96 = 1,162,835.44/x - Step 3: Cross multiply
2,129,708.14x = 2,938,974.96 × 1,162,835.44 - Step 4: Simplify right side
2,129,708.14x = 3,417,544,240,760.58 - Step 5: Solve for x
x = 3,417,544,240,760.58/2,129,708.14 - Step 6: Final answer
x = 1,604,700.75
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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.