Finding the Fourth Proportional to 787,305.12, 1,086,541.20 and 447,753.12
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Solution
The fourth proportional to 787,305.12, 1,086,541.20 and 447,753.12 is: 617,933.51
Step by Step Solution
- Step 1: Write the proportion equation
787,305.12 : 1,086,541.20 = 447,753.12 : x - Step 2: Convert to fraction form
787,305.12/1,086,541.20 = 447,753.12/x - Step 3: Cross multiply
787,305.12x = 1,086,541.20 × 447,753.12 - Step 4: Simplify right side
787,305.12x = 486,502,212,308.54 - Step 5: Solve for x
x = 486,502,212,308.54/787,305.12 - Step 6: Final answer
x = 617,933.51
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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.