Finding the Fourth Proportional to 870,675.98, 1,201,466.97 and 488,628.95
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Solution
The fourth proportional to 870,675.98, 1,201,466.97 and 488,628.95 is: 674,270.97
Step by Step Solution
- Step 1: Write the proportion equation
870,675.98 : 1,201,466.97 = 488,628.95 : x - Step 2: Convert to fraction form
870,675.98/1,201,466.97 = 488,628.95/x - Step 3: Cross multiply
870,675.98x = 1,201,466.97 × 488,628.95 - Step 4: Simplify right side
870,675.98x = 587,071,538,003.45 - Step 5: Solve for x
x = 587,071,538,003.45/870,675.98 - Step 6: Final answer
x = 674,270.97
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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.