Finding the Fourth Proportional to 828,313.80, 1,243,126.80 and 323,116.80
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Solution
The fourth proportional to 828,313.80, 1,243,126.80 and 323,116.80 is: 484,931.14
Step by Step Solution
- Step 1: Write the proportion equation
828,313.80 : 1,243,126.80 = 323,116.80 : x - Step 2: Convert to fraction form
828,313.80/1,243,126.80 = 323,116.80/x - Step 3: Cross multiply
828,313.80x = 1,243,126.80 × 323,116.80 - Step 4: Simplify right side
828,313.80x = 401,675,153,610.24 - Step 5: Solve for x
x = 401,675,153,610.24/828,313.80 - Step 6: Final answer
x = 484,931.14
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1.5x scale
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.