Finding the Fourth Proportional to 817,519.70, 1,128,184.68 and 454,958.84
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Solution
The fourth proportional to 817,519.70, 1,128,184.68 and 454,958.84 is: 627,847.37
Step by Step Solution
- Step 1: Write the proportion equation
817,519.70 : 1,128,184.68 = 454,958.84 : x - Step 2: Convert to fraction form
817,519.70/1,128,184.68 = 454,958.84/x - Step 3: Cross multiply
817,519.70x = 1,128,184.68 × 454,958.84 - Step 4: Simplify right side
817,519.70x = 513,277,593,318.57 - Step 5: Solve for x
x = 513,277,593,318.57/817,519.70 - Step 6: Final answer
x = 627,847.37
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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.