Finding the Fourth Proportional to 702,794.40, 969,781.82 and 396,852.20
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Solution
The fourth proportional to 702,794.40, 969,781.82 and 396,852.20 is: 547,613.99
Step by Step Solution
- Step 1: Write the proportion equation
702,794.40 : 969,781.82 = 396,852.20 : x - Step 2: Convert to fraction form
702,794.40/969,781.82 = 396,852.20/x - Step 3: Cross multiply
702,794.40x = 969,781.82 × 396,852.20 - Step 4: Simplify right side
702,794.40x = 384,860,048,787.00 - Step 5: Solve for x
x = 384,860,048,787.00/702,794.40 - Step 6: Final answer
x = 547,613.99
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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.