Finding the Fourth Proportional to 870,669.97, 1,201,458.64 and 488,622.94
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Solution
The fourth proportional to 870,669.97, 1,201,458.64 and 488,622.94 is: 674,262.66
Step by Step Solution
- Step 1: Write the proportion equation
870,669.97 : 1,201,458.64 = 488,622.94 : x - Step 2: Convert to fraction form
870,669.97/1,201,458.64 = 488,622.94/x - Step 3: Cross multiply
870,669.97x = 1,201,458.64 × 488,622.94 - Step 4: Simplify right side
870,669.97x = 587,060,249,656.17 - Step 5: Solve for x
x = 587,060,249,656.17/870,669.97 - Step 6: Final answer
x = 674,262.66
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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.