Finding the Fourth Proportional to 1,136,443.74, 1,568,251.26 and 627,135.18
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Solution
The fourth proportional to 1,136,443.74, 1,568,251.26 and 627,135.18 is: 865,423.87
Step by Step Solution
- Step 1: Write the proportion equation
1,136,443.74 : 1,568,251.26 = 627,135.18 : x - Step 2: Convert to fraction form
1,136,443.74/1,568,251.26 = 627,135.18/x - Step 3: Cross multiply
1,136,443.74x = 1,568,251.26 × 627,135.18 - Step 4: Simplify right side
1,136,443.74x = 983,505,536,225.33 - Step 5: Solve for x
x = 983,505,536,225.33/1,136,443.74 - Step 6: Final answer
x = 865,423.87
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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.