Finding the Fourth Proportional to 2,643,661.53, 3,965,702.39 and 1,127,357.41
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Solution
The fourth proportional to 2,643,661.53, 3,965,702.39 and 1,127,357.41 is: 1,691,125.70
Step by Step Solution
- Step 1: Write the proportion equation
2,643,661.53 : 3,965,702.39 = 1,127,357.41 : x - Step 2: Convert to fraction form
2,643,661.53/3,965,702.39 = 1,127,357.41/x - Step 3: Cross multiply
2,643,661.53x = 3,965,702.39 × 1,127,357.41 - Step 4: Simplify right side
2,643,661.53x = 4,470,763,970,717.89 - Step 5: Solve for x
x = 4,470,763,970,717.89/2,643,661.53 - Step 6: Final answer
x = 1,691,125.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.