Finding the Fourth Proportional to 559,765.62, 771,865.98 and 378,162.18
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Solution
The fourth proportional to 559,765.62, 771,865.98 and 378,162.18 is: 521,451.32
Step by Step Solution
- Step 1: Write the proportion equation
559,765.62 : 771,865.98 = 378,162.18 : x - Step 2: Convert to fraction form
559,765.62/771,865.98 = 378,162.18/x - Step 3: Cross multiply
559,765.62x = 771,865.98 × 378,162.18 - Step 4: Simplify right side
559,765.62x = 291,890,521,664.64 - Step 5: Solve for x
x = 291,890,521,664.64/559,765.62 - Step 6: Final answer
x = 521,451.32
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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.