Finding the Fourth Proportional to 839,361.13, 1,158,319.84 and 457,387.91
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Solution
The fourth proportional to 839,361.13, 1,158,319.84 and 457,387.91 is: 631,196.12
Step by Step Solution
- Step 1: Write the proportion equation
839,361.13 : 1,158,319.84 = 457,387.91 : x - Step 2: Convert to fraction form
839,361.13/1,158,319.84 = 457,387.91/x - Step 3: Cross multiply
839,361.13x = 1,158,319.84 × 457,387.91 - Step 4: Simplify right side
839,361.13x = 529,801,491,337.99 - Step 5: Solve for x
x = 529,801,491,337.99/839,361.13 - Step 6: Final answer
x = 631,196.12
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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.