Finding the Fourth Proportional to 878,217.19, 1,317,325.78 and 213,369.19
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Solution
The fourth proportional to 878,217.19, 1,317,325.78 and 213,369.19 is: 320,053.78
Step by Step Solution
- Step 1: Write the proportion equation
878,217.19 : 1,317,325.78 = 213,369.19 : x - Step 2: Convert to fraction form
878,217.19/1,317,325.78 = 213,369.19/x - Step 3: Cross multiply
878,217.19x = 1,317,325.78 × 213,369.19 - Step 4: Simplify right side
878,217.19x = 281,076,731,618.12 - Step 5: Solve for x
x = 281,076,731,618.12/878,217.19 - Step 6: Final answer
x = 320,053.78
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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.