Finding the Fourth Proportional to 687,415.92, 1,029,903.84 and 287,175.84
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Solution
The fourth proportional to 687,415.92, 1,029,903.84 and 287,175.84 is: 430,254.07
Step by Step Solution
- Step 1: Write the proportion equation
687,415.92 : 1,029,903.84 = 287,175.84 : x - Step 2: Convert to fraction form
687,415.92/1,029,903.84 = 287,175.84/x - Step 3: Cross multiply
687,415.92x = 1,029,903.84 × 287,175.84 - Step 4: Simplify right side
687,415.92x = 295,763,500,371.23 - Step 5: Solve for x
x = 295,763,500,371.23/687,415.92 - Step 6: Final answer
x = 430,254.07
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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.