Finding the Fourth Proportional to 965,399.10, 1,449,265.05 and 958,400.70
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Solution
The fourth proportional to 965,399.10, 1,449,265.05 and 958,400.70 is: 1,438,758.99
Step by Step Solution
- Step 1: Write the proportion equation
965,399.10 : 1,449,265.05 = 958,400.70 : x - Step 2: Convert to fraction form
965,399.10/1,449,265.05 = 958,400.70/x - Step 3: Cross multiply
965,399.10x = 1,449,265.05 × 958,400.70 - Step 4: Simplify right side
965,399.10x = 1,388,976,638,405.53 - Step 5: Solve for x
x = 1,388,976,638,405.53/965,399.10 - Step 6: Final answer
x = 1,438,758.99
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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.