Finding the Fourth Proportional to 771,138.36, 1,064,170.71 and 431,606.61
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Solution
The fourth proportional to 771,138.36, 1,064,170.71 and 431,606.61 is: 595,616.99
Step by Step Solution
- Step 1: Write the proportion equation
771,138.36 : 1,064,170.71 = 431,606.61 : x - Step 2: Convert to fraction form
771,138.36/1,064,170.71 = 431,606.61/x - Step 3: Cross multiply
771,138.36x = 1,064,170.71 × 431,606.61 - Step 4: Simplify right side
771,138.36x = 459,303,112,604.39 - Step 5: Solve for x
x = 459,303,112,604.39/771,138.36 - Step 6: Final answer
x = 595,616.99
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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.