Finding the Fourth Proportional to 923,395.68, 1,385,238.96 and 390,919.68
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Solution
The fourth proportional to 923,395.68, 1,385,238.96 and 390,919.68 is: 586,441.09
Step by Step Solution
- Step 1: Write the proportion equation
923,395.68 : 1,385,238.96 = 390,919.68 : x - Step 2: Convert to fraction form
923,395.68/1,385,238.96 = 390,919.68/x - Step 3: Cross multiply
923,395.68x = 1,385,238.96 × 390,919.68 - Step 4: Simplify right side
923,395.68x = 541,517,170,966.73 - Step 5: Solve for x
x = 541,517,170,966.73/923,395.68 - Step 6: Final answer
x = 586,441.09
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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.