Finding the Fourth Proportional to 839,450.99, 1,158,408.57 and 457,469.57
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Solution
The fourth proportional to 839,450.99, 1,158,408.57 and 457,469.57 is: 631,289.59
Step by Step Solution
- Step 1: Write the proportion equation
839,450.99 : 1,158,408.57 = 457,469.57 : x - Step 2: Convert to fraction form
839,450.99/1,158,408.57 = 457,469.57/x - Step 3: Cross multiply
839,450.99x = 1,158,408.57 × 457,469.57 - Step 4: Simplify right side
839,450.99x = 529,936,675,013.75 - Step 5: Solve for x
x = 529,936,675,013.75/839,450.99 - Step 6: Final answer
x = 631,289.59
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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.