Finding the Fourth Proportional to 870,670.16, 1,201,512.84 and 488,690
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Solution
The fourth proportional to 870,670.16, 1,201,512.84 and 488,690 is: 674,385.48
Step by Step Solution
- Step 1: Write the proportion equation
870,670.16 : 1,201,512.84 = 488,690 : x - Step 2: Convert to fraction form
870,670.16/1,201,512.84 = 488,690/x - Step 3: Cross multiply
870,670.16x = 1,201,512.84 × 488,690 - Step 4: Simplify right side
870,670.16x = 587,167,309,779.60 - Step 5: Solve for x
x = 587,167,309,779.60/870,670.16 - Step 6: Final answer
x = 674,385.48
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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.