Finding the Fourth Proportional to 624,005.12, 861,052.92 and 352,057.12
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Solution
The fourth proportional to 624,005.12, 861,052.92 and 352,057.12 is: 485,796.99
Step by Step Solution
- Step 1: Write the proportion equation
624,005.12 : 861,052.92 = 352,057.12 : x - Step 2: Convert to fraction form
624,005.12/861,052.92 = 352,057.12/x - Step 3: Cross multiply
624,005.12x = 861,052.92 × 352,057.12 - Step 4: Simplify right side
624,005.12x = 303,139,811,182.79 - Step 5: Solve for x
x = 303,139,811,182.79/624,005.12 - Step 6: Final answer
x = 485,796.99
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1.5x scale
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.