Finding the Fourth Proportional to 839,455.12, 1,158,414.26 and 457,473.70
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Solution
The fourth proportional to 839,455.12, 1,158,414.26 and 457,473.70 is: 631,295.28
Step by Step Solution
- Step 1: Write the proportion equation
839,455.12 : 1,158,414.26 = 457,473.70 : x - Step 2: Convert to fraction form
839,455.12/1,158,414.26 = 457,473.70/x - Step 3: Cross multiply
839,455.12x = 1,158,414.26 × 457,473.70 - Step 4: Simplify right side
839,455.12x = 529,944,057,654.96 - Step 5: Solve for x
x = 529,944,057,654.96/839,455.12 - Step 6: Final answer
x = 631,295.28
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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.