Finding the Fourth Proportional to 821,772.87, 1,134,044.08 and 459,197.08
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Solution
The fourth proportional to 821,772.87, 1,134,044.08 and 459,197.08 is: 633,690.58
Step by Step Solution
- Step 1: Write the proportion equation
821,772.87 : 1,134,044.08 = 459,197.08 : x - Step 2: Convert to fraction form
821,772.87/1,134,044.08 = 459,197.08/x - Step 3: Cross multiply
821,772.87x = 1,134,044.08 × 459,197.08 - Step 4: Simplify right side
821,772.87x = 520,749,730,127.29 - Step 5: Solve for x
x = 520,749,730,127.29/821,772.87 - Step 6: Final answer
x = 633,690.58
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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.