Finding the Fourth Proportional to 855,185.84, 1,283,221.20 and 620,465.84
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Solution
The fourth proportional to 855,185.84, 1,283,221.20 and 620,465.84 is: 931,019.76
Step by Step Solution
- Step 1: Write the proportion equation
855,185.84 : 1,283,221.20 = 620,465.84 : x - Step 2: Convert to fraction form
855,185.84/1,283,221.20 = 620,465.84/x - Step 3: Cross multiply
855,185.84x = 1,283,221.20 × 620,465.84 - Step 4: Simplify right side
855,185.84x = 796,194,919,763.81 - Step 5: Solve for x
x = 796,194,919,763.81/855,185.84 - Step 6: Final answer
x = 931,019.76
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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.