Finding the Fourth Proportional to 775,923.84, 1,070,764.38 and 436,392.09
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Solution
The fourth proportional to 775,923.84, 1,070,764.38 and 436,392.09 is: 602,215.17
Step by Step Solution
- Step 1: Write the proportion equation
775,923.84 : 1,070,764.38 = 436,392.09 : x - Step 2: Convert to fraction form
775,923.84/1,070,764.38 = 436,392.09/x - Step 3: Cross multiply
775,923.84x = 1,070,764.38 × 436,392.09 - Step 4: Simplify right side
775,923.84x = 467,273,105,685.75 - Step 5: Solve for x
x = 467,273,105,685.75/775,923.84 - Step 6: Final answer
x = 602,215.17
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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.