Finding the Fourth Proportional to 1,385,279.80, 2,079,474.90 and 1,071,129.40
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Solution
The fourth proportional to 1,385,279.80, 2,079,474.90 and 1,071,129.40 is: 1,607,896.62
Step by Step Solution
- Step 1: Write the proportion equation
1,385,279.80 : 2,079,474.90 = 1,071,129.40 : x - Step 2: Convert to fraction form
1,385,279.80/2,079,474.90 = 1,071,129.40/x - Step 3: Cross multiply
1,385,279.80x = 2,079,474.90 × 1,071,129.40 - Step 4: Simplify right side
1,385,279.80x = 2,227,386,701,952.06 - Step 5: Solve for x
x = 2,227,386,701,952.06/1,385,279.80 - Step 6: Final answer
x = 1,607,896.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.