Finding the Fourth Proportional to 839,062.20, 1,157,450.94 and 499,464.84
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Solution
The fourth proportional to 839,062.20, 1,157,450.94 and 499,464.84 is: 688,990.70
Step by Step Solution
- Step 1: Write the proportion equation
839,062.20 : 1,157,450.94 = 499,464.84 : x - Step 2: Convert to fraction form
839,062.20/1,157,450.94 = 499,464.84/x - Step 3: Cross multiply
839,062.20x = 1,157,450.94 × 499,464.84 - Step 4: Simplify right side
839,062.20x = 578,106,048,554.95 - Step 5: Solve for x
x = 578,106,048,554.95/839,062.20 - Step 6: Final answer
x = 688,990.70
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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.