Finding the Fourth Proportional to 923,396.68, 1,385,240.46 and 390,920.68
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Solution
The fourth proportional to 923,396.68, 1,385,240.46 and 390,920.68 is: 586,442.59
Step by Step Solution
- Step 1: Write the proportion equation
923,396.68 : 1,385,240.46 = 390,920.68 : x - Step 2: Convert to fraction form
923,396.68/1,385,240.46 = 390,920.68/x - Step 3: Cross multiply
923,396.68x = 1,385,240.46 × 390,920.68 - Step 4: Simplify right side
923,396.68x = 541,519,142,586.71 - Step 5: Solve for x
x = 541,519,142,586.71/923,396.68 - Step 6: Final answer
x = 586,442.59
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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.