Finding the Fourth Proportional to 734,620.68, 1,013,698.66 and 412,366.23
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Solution
The fourth proportional to 734,620.68, 1,013,698.66 and 412,366.23 is: 569,021.68
Step by Step Solution
- Step 1: Write the proportion equation
734,620.68 : 1,013,698.66 = 412,366.23 : x - Step 2: Convert to fraction form
734,620.68/1,013,698.66 = 412,366.23/x - Step 3: Cross multiply
734,620.68x = 1,013,698.66 × 412,366.23 - Step 4: Simplify right side
734,620.68x = 418,015,094,780.25 - Step 5: Solve for x
x = 418,015,094,780.25/734,620.68 - Step 6: Final answer
x = 569,021.68
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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.