Finding the Fourth Proportional to 734,169.12, 1,013,153.76 and 428,455.68
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Solution
The fourth proportional to 734,169.12, 1,013,153.76 and 428,455.68 is: 591,269.06
Step by Step Solution
- Step 1: Write the proportion equation
734,169.12 : 1,013,153.76 = 428,455.68 : x - Step 2: Convert to fraction form
734,169.12/1,013,153.76 = 428,455.68/x - Step 3: Cross multiply
734,169.12x = 1,013,153.76 × 428,455.68 - Step 4: Simplify right side
734,169.12x = 434,091,483,185.36 - Step 5: Solve for x
x = 434,091,483,185.36/734,169.12 - Step 6: Final answer
x = 591,269.06
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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.