Finding the Fourth Proportional to 1,557,921.63, 2,149,938.33 and 842,529.63
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Solution
The fourth proportional to 1,557,921.63, 2,149,938.33 and 842,529.63 is: 1,162,694.39
Step by Step Solution
- Step 1: Write the proportion equation
1,557,921.63 : 2,149,938.33 = 842,529.63 : x - Step 2: Convert to fraction form
1,557,921.63/2,149,938.33 = 842,529.63/x - Step 3: Cross multiply
1,557,921.63x = 2,149,938.33 × 842,529.63 - Step 4: Simplify right side
1,557,921.63x = 1,811,386,745,697.72 - Step 5: Solve for x
x = 1,811,386,745,697.72/1,557,921.63 - Step 6: Final answer
x = 1,162,694.39
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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.