Finding the Fourth Proportional to 886,383.12, 1,223,073.70 and 499,178.18
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Solution
The fourth proportional to 886,383.12, 1,223,073.70 and 499,178.18 is: 688,789.86
Step by Step Solution
- Step 1: Write the proportion equation
886,383.12 : 1,223,073.70 = 499,178.18 : x - Step 2: Convert to fraction form
886,383.12/1,223,073.70 = 499,178.18/x - Step 3: Cross multiply
886,383.12x = 1,223,073.70 × 499,178.18 - Step 4: Simplify right side
886,383.12x = 610,531,703,571.87 - Step 5: Solve for x
x = 610,531,703,571.87/886,383.12 - Step 6: Final answer
x = 688,789.86
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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.