Finding the Fourth Proportional to 2,072,153.07, 2,858,812.79 and 1,255,767.84
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Solution
The fourth proportional to 2,072,153.07, 2,858,812.79 and 1,255,767.84 is: 1,732,499.98
Step by Step Solution
- Step 1: Write the proportion equation
2,072,153.07 : 2,858,812.79 = 1,255,767.84 : x - Step 2: Convert to fraction form
2,072,153.07/2,858,812.79 = 1,255,767.84/x - Step 3: Cross multiply
2,072,153.07x = 2,858,812.79 × 1,255,767.84 - Step 4: Simplify right side
2,072,153.07x = 3,590,005,155,983.84 - Step 5: Solve for x
x = 3,590,005,155,983.84/2,072,153.07 - Step 6: Final answer
x = 1,732,499.98
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1.5x scale
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.