Finding the Fourth Proportional to 842,857.20, 1,264,128.84 and 243,670.14
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Solution
The fourth proportional to 842,857.20, 1,264,128.84 and 243,670.14 is: 365,459.83
Step by Step Solution
- Step 1: Write the proportion equation
842,857.20 : 1,264,128.84 = 243,670.14 : x - Step 2: Convert to fraction form
842,857.20/1,264,128.84 = 243,670.14/x - Step 3: Cross multiply
842,857.20x = 1,264,128.84 × 243,670.14 - Step 4: Simplify right side
842,857.20x = 308,030,451,420.84 - Step 5: Solve for x
x = 308,030,451,420.84/842,857.20 - Step 6: Final answer
x = 365,459.83
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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.