Finding the Fourth Proportional to 646,812.96, 970,197.57 and 197,515.68
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Solution
The fourth proportional to 646,812.96, 970,197.57 and 197,515.68 is: 296,266.84
Step by Step Solution
- Step 1: Write the proportion equation
646,812.96 : 970,197.57 = 197,515.68 : x - Step 2: Convert to fraction form
646,812.96/970,197.57 = 197,515.68/x - Step 3: Cross multiply
646,812.96x = 970,197.57 × 197,515.68 - Step 4: Simplify right side
646,812.96x = 191,629,232,772.90 - Step 5: Solve for x
x = 191,629,232,772.90/646,812.96 - Step 6: Final answer
x = 296,266.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.