Finding the Fourth Proportional to 1,921,515.66, 2,651,691.74 and 1,050,353.81
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Solution
The fourth proportional to 1,921,515.66, 2,651,691.74 and 1,050,353.81 is: 1,449,488.32
Step by Step Solution
- Step 1: Write the proportion equation
1,921,515.66 : 2,651,691.74 = 1,050,353.81 : x - Step 2: Convert to fraction form
1,921,515.66/2,651,691.74 = 1,050,353.81/x - Step 3: Cross multiply
1,921,515.66x = 2,651,691.74 × 1,050,353.81 - Step 4: Simplify right side
1,921,515.66x = 2,785,214,503,544.30 - Step 5: Solve for x
x = 2,785,214,503,544.30/1,921,515.66 - Step 6: Final answer
x = 1,449,488.32
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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.