Finding the Fourth Proportional to 801,940, 1,106,677.20 and 479,663.68
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Solution
The fourth proportional to 801,940, 1,106,677.20 and 479,663.68 is: 661,935.88
Step by Step Solution
- Step 1: Write the proportion equation
801,940 : 1,106,677.20 = 479,663.68 : x - Step 2: Convert to fraction form
801,940/1,106,677.20 = 479,663.68/x - Step 3: Cross multiply
801,940x = 1,106,677.20 × 479,663.68 - Step 4: Simplify right side
801,940x = 530,832,858,324.10 - Step 5: Solve for x
x = 530,832,858,324.10/801,940 - Step 6: Final answer
x = 661,935.88
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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.