Finding the Fourth Proportional to 1,422,211.26, 2,133,260.25 and 783,780.71
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Solution
The fourth proportional to 1,422,211.26, 2,133,260.25 and 783,780.71 is: 1,175,639.84
Step by Step Solution
- Step 1: Write the proportion equation
1,422,211.26 : 2,133,260.25 = 783,780.71 : x - Step 2: Convert to fraction form
1,422,211.26/2,133,260.25 = 783,780.71/x - Step 3: Cross multiply
1,422,211.26x = 2,133,260.25 × 783,780.71 - Step 4: Simplify right side
1,422,211.26x = 1,672,008,219,754.30 - Step 5: Solve for x
x = 1,672,008,219,754.30/1,422,211.26 - Step 6: Final answer
x = 1,175,639.84
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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.