Finding the Fourth Proportional to 919,232.20, 1,378,848.30 and 620,633.80
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Solution
The fourth proportional to 919,232.20, 1,378,848.30 and 620,633.80 is: 930,950.70
Step by Step Solution
- Step 1: Write the proportion equation
919,232.20 : 1,378,848.30 = 620,633.80 : x - Step 2: Convert to fraction form
919,232.20/1,378,848.30 = 620,633.80/x - Step 3: Cross multiply
919,232.20x = 1,378,848.30 × 620,633.80 - Step 4: Simplify right side
919,232.20x = 855,759,860,052.54 - Step 5: Solve for x
x = 855,759,860,052.54/919,232.20 - Step 6: Final answer
x = 930,950.70
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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.