Finding the Fourth Proportional to 1,383,521.96, 1,908,534.26 and 1,125,687.08
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Solution
The fourth proportional to 1,383,521.96, 1,908,534.26 and 1,125,687.08 is: 1,552,857.43
Step by Step Solution
- Step 1: Write the proportion equation
1,383,521.96 : 1,908,534.26 = 1,125,687.08 : x - Step 2: Convert to fraction form
1,383,521.96/1,908,534.26 = 1,125,687.08/x - Step 3: Cross multiply
1,383,521.96x = 1,908,534.26 × 1,125,687.08 - Step 4: Simplify right side
1,383,521.96x = 2,148,412,358,219.36 - Step 5: Solve for x
x = 2,148,412,358,219.36/1,383,521.96 - Step 6: Final answer
x = 1,552,857.43
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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.