Finding the Fourth Proportional to 426,137.02, 638,596.50 and 312,929.26
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Solution
The fourth proportional to 426,137.02, 638,596.50 and 312,929.26 is: 468,946.66
Step by Step Solution
- Step 1: Write the proportion equation
426,137.02 : 638,596.50 = 312,929.26 : x - Step 2: Convert to fraction form
426,137.02/638,596.50 = 312,929.26/x - Step 3: Cross multiply
426,137.02x = 638,596.50 × 312,929.26 - Step 4: Simplify right side
426,137.02x = 199,835,530,183.59 - Step 5: Solve for x
x = 199,835,530,183.59/426,137.02 - Step 6: Final answer
x = 468,946.66
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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.