Finding the Fourth Proportional to 839,916.19, 1,259,076.09 and 535,455.68
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Solution
The fourth proportional to 839,916.19, 1,259,076.09 and 535,455.68 is: 802,674.66
Step by Step Solution
- Step 1: Write the proportion equation
839,916.19 : 1,259,076.09 = 535,455.68 : x - Step 2: Convert to fraction form
839,916.19/1,259,076.09 = 535,455.68/x - Step 3: Cross multiply
839,916.19x = 1,259,076.09 × 535,455.68 - Step 4: Simplify right side
839,916.19x = 674,179,443,942.69 - Step 5: Solve for x
x = 674,179,443,942.69/839,916.19 - Step 6: Final answer
x = 802,674.66
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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.