Finding the Fourth Proportional to 870,670.91, 1,201,459.94 and 488,623.88
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Solution
The fourth proportional to 870,670.91, 1,201,459.94 and 488,623.88 is: 674,263.96
Step by Step Solution
- Step 1: Write the proportion equation
870,670.91 : 1,201,459.94 = 488,623.88 : x - Step 2: Convert to fraction form
870,670.91/1,201,459.94 = 488,623.88/x - Step 3: Cross multiply
870,670.91x = 1,201,459.94 × 488,623.88 - Step 4: Simplify right side
870,670.91x = 587,062,009,096.95 - Step 5: Solve for x
x = 587,062,009,096.95/870,670.91 - Step 6: Final answer
x = 674,263.96
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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.