Finding the Fourth Proportional to 676,913.44, 934,108.50 and 405,131.08
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Solution
The fourth proportional to 676,913.44, 934,108.50 and 405,131.08 is: 559,061.71
Step by Step Solution
- Step 1: Write the proportion equation
676,913.44 : 934,108.50 = 405,131.08 : x - Step 2: Convert to fraction form
676,913.44/934,108.50 = 405,131.08/x - Step 3: Cross multiply
676,913.44x = 934,108.50 × 405,131.08 - Step 4: Simplify right side
676,913.44x = 378,436,385,442.18 - Step 5: Solve for x
x = 378,436,385,442.18/676,913.44 - Step 6: Final answer
x = 559,061.71
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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.