Finding the Fourth Proportional to 866,317.24, 1,298,340.97 and 416,142.43
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Solution
The fourth proportional to 866,317.24, 1,298,340.97 and 416,142.43 is: 623,668.49
Step by Step Solution
- Step 1: Write the proportion equation
866,317.24 : 1,298,340.97 = 416,142.43 : x - Step 2: Convert to fraction form
866,317.24/1,298,340.97 = 416,142.43/x - Step 3: Cross multiply
866,317.24x = 1,298,340.97 × 416,142.43 - Step 4: Simplify right side
866,317.24x = 540,294,761,938.15 - Step 5: Solve for x
x = 540,294,761,938.15/866,317.24 - Step 6: Final answer
x = 623,668.49
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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.