Finding the Fourth Proportional to 753,163.26, 1,038,908.86 and 447,037.93
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Solution
The fourth proportional to 753,163.26, 1,038,908.86 and 447,037.93 is: 616,641.43
Step by Step Solution
- Step 1: Write the proportion equation
753,163.26 : 1,038,908.86 = 447,037.93 : x - Step 2: Convert to fraction form
753,163.26/1,038,908.86 = 447,037.93/x - Step 3: Cross multiply
753,163.26x = 1,038,908.86 × 447,037.93 - Step 4: Simplify right side
753,163.26x = 464,431,666,233.06 - Step 5: Solve for x
x = 464,431,666,233.06/753,163.26 - Step 6: Final answer
x = 616,641.43
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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.