Finding the Fourth Proportional to 864,775.92, 1,297,961.24 and 438,610.80
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Solution
The fourth proportional to 864,775.92, 1,297,961.24 and 438,610.80 is: 658,320.62
Step by Step Solution
- Step 1: Write the proportion equation
864,775.92 : 1,297,961.24 = 438,610.80 : x - Step 2: Convert to fraction form
864,775.92/1,297,961.24 = 438,610.80/x - Step 3: Cross multiply
864,775.92x = 1,297,961.24 × 438,610.80 - Step 4: Simplify right side
864,775.92x = 569,299,817,845.39 - Step 5: Solve for x
x = 569,299,817,845.39/864,775.92 - Step 6: Final answer
x = 658,320.62
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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.